RSA BSAFE®
Crypto-C Micro Edition for Samsung MFP SW
Platform (VxWorks)
Security Policy
Version 3.0.0.1
December 3, 2012
Strong encryption technology for C/C++ developers
© 2008 RSA Security Inc. All rights reserved.
Published December 3, 2012
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Table of Contents
iii
Table of Contents
1 Introduction .......................................................................................................................................................4
1.1 References..................................................................................................................................................4
1.2 Document Organization..........................................................................................................................4
2 Crypto-C ME Cryptographic Toolkit ............................................................................................................5
2.1 Cryptographic Module............................................................................................................................5
2.2 Crypto-C ME Interfaces...........................................................................................................................6
2.3 Roles and Services....................................................................................................................................7
2.3.1 Officer Role...................................................................................................................................7
2.3.2 User Role.......................................................................................................................................7
2.4 Cryptographic Key Management...........................................................................................................7
2.4.1 Key Generation ............................................................................................................................7
2.4.2 Key Storage...................................................................................................................................8
2.4.3 Key Access....................................................................................................................................9
2.4.4 Key Protection/Zeroization ........................................................................................................9
2.5 Cryptographic Algorithms....................................................................................................................10
2.6 Self-tests...................................................................................................................................................11
2.6.1 Power-up Self-test......................................................................................................................11
2.6.2 Conditional Self-tests ................................................................................................................12
2.6.3 Critical Functions Tests.............................................................................................................12
2.6.4 Mitigation of Other Attacks......................................................................................................12
3 Secure Operation of Crypto-C ME...............................................................................................................13
3.1 Crypto Officer and User Guidance......................................................................................................13
3.2 Roles.........................................................................................................................................................13
3.3 Modes of Operation ...............................................................................................................................14
3.4 Operating Crypto-C ME........................................................................................................................16
3.5 Startup Self-tests.....................................................................................................................................17
3.6 Random Number Generator.................................................................................................................17
3.6.1 PRNG Seeding............................................................................................................................17
4 Services .............................................................................................................................................................18
5 Acronyms and Definitions............................................................................................................................19
6 Contacting RSA ...............................................................................................................................................22
6.1 Support and Service...............................................................................................................................22
6.2 Feedback..................................................................................................................................................22
Introduction
4
1 Introduction
This is a non-proprietary RSA cryptographic module security policy. This security policy describes how
RSA BSAFE® Crypto-C Micro Edition for Samsung MFP SW Platform (VxWorks) meets the security
requirements of FIPS 140-2, and how to securely operate it in a FIPS 140-2-compliant manner. This
policy is prepared as part of the FIPS 140-2 Level 1 validation of Crypto-C ME.
FIPS 140-2 (Federal Information Processing Standards Publication 140-2 – Security Requirements for
Cryptographic Modules) details the United States Government requirements for cryptographic modules.
More information about the FIPS 140-2 standard and validation program is available on the NIST Web
site at http://csrc.nist.gov/groups/STM/cmvp/index.html.
1.1 References
This document deals only with the operations and capabilities of Crypto-C ME in the technical terms of
a FIPS 140-2 cryptographic module security policy. More information about Crypto-C ME and the entire
RSA BSAFE product line is available from the following resources:
 Information on the full line of RSA products and services is available at http://www.rsa.com/.
 RSA BSAFE product overviews are available at http://www.rsa.com/node.asp?id=1204.
 Answers to technical or sales related questions are available at
http://www.rsasecurity.com./node.asp?id=1067.
1.2 Document Organization
This document explains the Crypto-C ME FIPS 140-2 relevant features and functionality. This document
consists of the following sections:
 This section, "Introduction", provides an overview and introduction to the Security Policy.
 "Crypto-C ME Cryptographic Toolkit" on page 5 describes Crypto-C ME and how it meets FIPS 140-
2 requirements.
 "Secure Operation of Crypto-C ME" on page 13 specifically addresses the required configuration for
the FIPS 140-2 mode of operation.
 "Services" on page 18 lists all of the functions of Crypto-C ME.
 "Acronyms and Definitions" on page 19 lists the acronyms and definitions used in this document.
Crypto-C ME Cryptographic Toolkit
5
2 Crypto-C ME Cryptographic Toolkit
The Crypto-C ME software development toolkit enables developers to incorporate cryptographic
technologies into applications. Crypto-C ME security software is designed to help protect sensitive data
as it is stored, using strong encryption techniques that ease integration with existing data models. Using
the capabilities of Crypto-C ME software in applications helps provide a persistent level of protection
for data, lessening the risk of internal, as well as external, compromise.
The features of Crypto-C ME include the ability to optimize code for different processors, and specific
speed or size requirements. Assembly-level optimizations on key processors mean that Crypto-C ME
algorithms can be used at increased speeds on many platforms.
Crypto-C ME offers a full set of cryptographic algorithms including public-key (asymmetric) algorithms,
symmetric (secret key) block and stream ciphers, message digests, message authentication, and Pseudo
Random Number Generator (PRNG) support. Developers can implement the full suite of algorithms
through a single Application Programming Interface (API) or select a specific set of algorithms to reduce
code size or meet performance requirements.
Note: When operating in a FIPS 140-2-approved manner, the set of algorithm implementations is not
customizable.
2.1 Cryptographic Module
Crypto-C ME is classified as a multi-chip standalone cryptographic module for the purposes of
FIPS 140-2. As such, Crypto-C ME must be tested on a specific operating system and computer platform.
The cryptographic boundary includes Crypto-C ME running on selected platforms. Crypto-C ME was
validated as meeting all FIPS 140-2 Level 1 security requirements, including cryptographic key
management and operating system requirements. Crypto-C ME is packaged as a set of dynamically
loaded modules or shared library files that contain the module’s entire executable code. The Crypto-C
ME toolkit relies on the physical security provided by the host PC in which it runs.
For FIPS 140-2 validation, Crypto-C ME is tested on the following platforms:
 VxWorks, ARM9, built with Wind River Workbench 3.0.
Note: Compliance is maintained on all of the above platforms for which the binary executable remains
unchanged.
Crypto-C ME Cryptographic Toolkit
6 RSA BSAFE Crypto-C ME 3.0.0.1 Security Policy
2.2 Crypto-C ME Interfaces
Crypto-C ME is evaluated as a multi-chip, standalone module. The physical cryptographic boundary of
the module is the case of the general-purpose computer or mobile device, which encloses the hardware
running the module. The physical interfaces for Crypto-C ME consist of the keyboard, mouse, monitor,
CD-ROM drive, floppy drive, serial ports, USB ports, COM ports, and network adapter(s).
The logical boundary of the cryptographic module is the binary image (maser dynamic shared library) and
the signature data that make up the module. The underlying logical interface to Crypto-C ME is the API,
documented in the RSA BSAFE Crypto-C ME 3.0 Developer’s Guide. Crypto-C ME provides for Control
Input through the API calls. Data Input and Output are provided in the variables passed with the API
calls, and Status Output is provided through the returns and error codes that are documented for each call.
This is illustrated in the following diagram.
Figure 1. Crypto-C ME Logical Interfaces
Operating System (OS)
Hardware
Signature Crypto-C ME Binary Image
Provides
services
for toolkit
Data
In
Data
Out
Control
In
Status
Out
Application
Run on OS
MFP
Software – Runs on Hardware
Provides service for OS
Logical Boundary
Physical Boundary
Crypto-C ME Cryptographic Toolkit
7
2.3 Roles and Services
Crypto-C ME meets all FIPS 140-2 Level 1 requirements for roles and services, implementing both a User
(User) role and Officer (CO) role. As allowed by FIPS 140-2, Crypto-C ME does not support user
identification or authentication for these roles. Only one role can be active at a time and Crypto-C ME
does not allow concurrent operators.
The following table describes the services accessible by the two roles.
Table 1. Crypto-C ME Roles and Services
Role Services
Officer The Officer has access to a superset of the services that are available to the User. The Officer
role can also invoke the full set of self-tests inside the module.
User The User can perform general security functions, as described in the RSA BSAFE Crypto-C
Micro Edition Developer's Guide. The User can also call specific FIPS 140-2 module functions
as defined in the Developer's Guide.
2.3.1 Officer Role
An operator assuming the Officer role can call any Crypto-C ME function. The complete list of the
functionality available to the Officer is outlined in "Services" on page 18.
2.3.2 User Role
An operator assuming the User role can use the entire Crypto-C ME API except for
R_FIPS140_self_test_full(), which is reserved for the Officer. The complete list of Crypto-C ME
functions is outlined in "Services" on page 18.
2.4 Cryptographic Key Management
Cryptographic key management is concerned with generating and storing keys, managing access to
keys, protecting keys during use, and zeroizing keys when they are not longer required.
2.4.1 Key Generation
Crypto-C ME supports generation of DSA (Cert. #573), RSA (Cert. #918), Diffie-Hellman (DH) and
Elliptic Curve Cryptography (ECC) (Cert. #252) public and private keys. Also, Crypto-C ME uses a FIPS
186-2-compliant random number generator (Cert. #962) as well as a Dual Elliptic Curve Deterministic
Random Bit Generator (Dual ECDRBG) (Cert. #143) and HMAC-DRBG (Cert. #143) in the generation
asymmetric and symmetric keys used in algorithms such as AES (Cert. #1826), Triple DES (Cert. #1179),
RSA (Cert. #918), DSA (Cert. #573), Diffie-Hellman, ECC (Cert. #252), and HMAC (Cert. #1080).
Crypto-C ME Cryptographic Toolkit
8 RSA BSAFE Crypto-C ME 3.0.0.1 Security Policy
2.4.2 Key Storage
Crypto-C ME does not provide long-term cryptographic key storage. If a user chooses to store keys, the
user is responsible for storing keys exported from the module.
The following table lists all keys and critical security parameters (CSPs) in the module and where they
are stored.
Table 2. Key Storage
Key or CSP Storage
Hardcoded DSA public key Persistent storage embedded in the module binary (encrypted).
Hardcoded AES key Persistent storage embedded in the module binary (plaintext).
AES keys Volatile memory only (plaintext).
Triple-DES keys Volatile memory only (plaintext).
HMAC with SHA-1 and SHA-2 keys
(SHA-224, SHA-256, SHA-384, SHA-512)
Volatile memory only (plaintext).
Diffie-Hellman public/private keys Volatile memory only (plaintext).
ECC public/private keys Volatile memory only (plaintext).
RSA public/private keys Volatile memory only (plaintext).
DSA public/private keys Volatile memory only (plaintext).
FIPS 186-2 seed Volatile memory only (plaintext).
FIPS 186-2 key Volatile memory only (plaintext).
EC DRBG entropy Volatile memory only (plaintext).
EC DRBG S value Volatile memory only (plaintext).
EC DRBG init_seed Volatile memory only (plaintext).
HMAC DRBG entropy Volatile memory only (plaintext).
HMAC DRBG V value Volatile memory only (plaintext).
HMAC DRBG key Volatile memory only (plaintext).
HMAC DRBG init_seed Volatile memory only (plaintext).
Crypto-C ME Cryptographic Toolkit
9
2.4.3 Key Access
An authorized operator of the module has access to all key data created during Crypto-C ME operation.
Note: The User and Officer roles have equal and complete access to all keys.
The following table lists the different services provided by the toolkit with the type of access to keys or
CSPs.
Table 3. Key and CSP Access
Service Key or CSP Type of Access
Encryption and decryption Symmetric keys (AES, Triple-DES) Read/Execute
Digital signature and verification Asymmetric keys (DSA, RSA, ECDSA) Read/Execute
Hashing None N/A
MAC HMAC keys Read/Execute
Random number generation FIPS 186-2 seed and key
HMAC DRBG entropy, V, key and init_seed
EC DRBG entropy, S and init_seed
Read/Write/Execute
Key generation Symmetric keys (AES, Triple-DES)
Asymmetric keys (DSA, EC DSA, RSA, DH, ECDH)
MAC keys (HMAC)
Write
Key establishment primitives Asymmetric keys (RSA, DH, ECDH) Read/Execute
Self-test (Crypto Officer service) Hardcoded keys (DSA and AES) Read/Execute
Show status None N/A
Zeroization All Read/Write
2.4.4 Key Protection/Zeroization
All key data resides in internally allocated data structures and can be output only using the Crypto-C
ME API. The operating system protects memory and process space from unauthorized access. The
operator should follow the steps outlined in the RSA BSAFE Crypto-C Micro Edition Developer’s Guide to
ensure sensitive data is protected by zeroizing the data from memory when it is no longer needed.
Crypto-C ME Cryptographic Toolkit
10 RSA BSAFE Crypto-C ME 3.0.0.1 Security Policy
2.5 Cryptographic Algorithms
Crypto-C ME supports a wide variety of cryptographic algorithms. To achieve compliance with the FIPS
140-2 standard, only FIPS 140-2-approved or allowed algorithms can be used in an approved mode of
operation. The following table lists the FIPS 140-2-approved and allowed algorithms supported by
Crypto-C ME.
Table 4. Crypto-C ME FIPS 140-2-approved and allowed Algorithms
Algorithm Validation Certificate
AES ECB, CBC, CFB, OFB, CTR, CCM, GCM and GMAC (all modes
128, 192, and 256-bit key sizes).
#1826
Triple-DES ECB, CBC, CFB (64-bit), and OFB. #1179
Diffie-Hellman (1024-bit, 2048-bit, and 4096-bit keys; shared secret
provides between 80 bits and 150 bits of encryption strength); EC
Diffie-Hellman (P192, P224, P256, P384, P521, B163, B233, B283,
B409, B571, K163, K233, K283, K409, K571; shared secret provides
between 80 bits and 256 bits of encryption strength).
Allowed in FIPS 140-2 mode
DSA. #573
ECDSA. #252
RNG [FIPS 186-2 Pseudo Random Number Generator (PRNG) –
Change Notice 1, with and without the mod q step]
#962
DRBG [Dual ECDRBG and HMAC-DRBG] #143
RSA X9.31, PKCS#1 V.1.5, and PKCS#1 V.2.1 (SHA256 – PSS). #918
RSA (key wrapping; key establishment methodology provides between
80 and 150 bits of encryption strength)
Allowed in FIPS 140-2 mode for key
transport
SHS [SHA-1, 224, 256, 384, and 512] #1605
HMAC [HMAC-SHA1, SHA224, SHA256, SHA384, and SHA512] #1080
The following algorithms are not FIPS 140-2-approved:
 DES
 MD2
 MD5
 HMAC MD5
 DES40
 RC2
 RC4
Crypto-C ME Cryptographic Toolkit
11
 RC5
 ECAES
 ECIES
 PBKDF1 SHA-1
 PBKDF2 HMAC SHA-1, SHA-224, SHA-256, SHA-384, and SHA-512
 RSA PKCS#1 V.2.0 (OAEP)
 Entropy RNG
 OTP RNG.
For more information about using Crypto-C ME in a FIPS 140-2-compliant manner, see "Secure
Operation of Crypto-C ME" on page 13.
2.6 Self-tests
Crypto-C ME performs a number of power-up and conditional self-tests to ensure proper operation.
If the power-up self-test fails, the toolkit is disabled and the operation fails. The toolkit can only leave
the disabled state by reloading the FIPS 140-2 module. If the conditional self-test fails, the operation fails
but the toolkit is not disabled.
2.6.1 Power-up Self-test
Crypto-C ME implements the following power-up self-tests:
 AES, AES CCM, AES GCM, and AES GMAC Known Answer Tests (KATs)
 DES and Triple DES KATs
 SHA-1, SHA-224, SHA-256, SHA-384, and SHA-512 KATs
 HMAC SHA-1, HMAC SHA-224, HMAC SHA-256, HMAC SHA-384, and HMAC SHA-512 KATs
 RSA sign/verify test
 DSA sign/verify test
 DH and EC-DH conditional test
 ECDSA sign/verify test
 PRNG (FIPS 186-2, Dual ECDRBG, and HMAC–DRBG) KATs
 Software integrity test.
Power-up self-tests are executed automatically when Crypto-C ME is first called.
Secure Operation of Crypto-C ME
12 RSA BSAFE Crypto-C ME 3.0.0.1 Security Policy
2.6.2 Conditional Self-tests
Crypto-C ME performs two conditional self-tests:
 A pair-wise consistency test each time Crypto-C ME generates a DSA, RSA, or EC public/private key
pair.
 A Continuous Random Number Generation (CRNG) test each time the toolkit produces random
data, as per the FIPS 186‐2 standard. The CRNG test is performed on all approved and
non‐approved RNGs.
2.6.3 Critical Functions Tests
Depending on operating mode, Crypto-C ME performs the following known answer tests:
 In R_FIPS140_MODE_FIPS140_SSL mode, Crypto-C ME performs a known answer test for MD5 and
HMAC-MD5.
 In R_FIPS140_MODE_FIPS140_ECC mode, Crypto-C ME performs a known answer test for ECAES
and ECIES.
 In R_FIPS140_MODE_SSL_ECC mode, a known answer test is performed for MD5, HMAC-MD5,
ECAES, and ECIES.
2.6.4 Mitigation of Other Attacks
RSA key operations implement blinding, a reversible way of modifying the input data, so as to make the
RSA operation immune to timing attacks. Blinding has no effect on the algorithm other than to mitigate
attacks on the algorithm. Blinding is implemented through blinding modes, and the following options
are available:
 Blinding mode off.
 Blinding mode with no update, where the blinding value is constant for each operation.
 Blinding mode with full update, where a new blinding value is used for each operation.
Secure Operation of Crypto-C ME
13
3 Secure Operation of Crypto-C ME
This section provides an overview of how to securely operate Crypto-C ME to be in compliance with the
FIPS 140-2 standards.
3.1 Crypto Officer and User Guidance
The Crypto Officer and User must only use algorithms approved for use in a FIPS 140 mode of
operation, as listed in Table 4 Crypto-C ME FIPS 140-2-approved and allowed Algorithms on page 10.
The requirements for using the approved algorithms in a FIPS 140 mode of operation are as follows:
 The bit length for a DSA key pair must be 1024 bits .
 Bit lengths for an RSA key pair must be between 1024 and 4096 bits in multiples of 512.
 Bit lengths for an HMAC key must be between 80 and 4096 bits.
 EC key pairs must have named curve domain parameters from the set of NIST-recommended
named curves (P192, P224, P256, P384, P521, B163, B233, B283, B409, B571, K163, K233, K283, K409,
K571). The module limits possible curves for Dual EC DRBG to P256, P384, and P521 in accordance
with SP 800-90.
 When using RSA for key wrapping, the strength of the methodology is between 80 and 150 bits of
security.
 The Diffie-Hellman shared secret provides between 80 and 150 bits of encryption strength.
 EC Diffie-Hellman primitives must use curve domain parameters from the set of NIST-
recommended named curves. Using NIST-recommended curves, the computed Diffie-Hellman
shared secret provides between 80 and 256 bits of encryption strength.
 When using an approved RNG to generate keys, the requested security strength for the RNG must
be at least as great as the security strength of the key being generated.
3.2 Roles
If a user of Crypto-C ME needs to operate the toolkit in different roles, then the user must ensure that all
instantiated cryptographic objects are destroyed before changing from the Crypto User role to the
Crypto Officer role, or unexpected results could occur.
Secure Operation of Crypto-C ME
14 RSA BSAFE Crypto-C ME 3.0.0.1 Security Policy
The following table lists the roles a user can operate in.
Table 5. Crypto-C ME Roles
Role Description
R_FIPS140_ROLE_OFFICER An operator assuming the Crypto Officer role can call any Crypto-C ME
function. The complete list of the functionality available to the Crypto Officer is
outlined in "Services" on page 18.
R_FIPS140_ROLE_USER An operator assuming the Crypto User role can use the entire Crypto-C ME
API except for R_FIPS140_self_test_full(), which is reserved for the
Crypto Officer. The complete list of Crypto-C ME functions is outlined in
"Services" on page 18.
3.3 Modes of Operation
The following table lists and describes the available modes of operation.
Table 6. Crypto-C ME Modes of Operation
Mode Description
R_FIPS140_MODE_FIPS140
FIPS 140-2-approved.
Provides the following cryptographic algorithms:
AES ECB, CBC, CFB, OFB, CTR, CCM, GCM and GMAC (all modes
128, 192, and 256-bit key sizes);
Triple-DES ECB, CBC, CFB (64-bit), and OFB;
DSA;
RNG [FIPS 186-2 Pseudo Random Number Generator (PRNG) –
Change Notice 1, with and without the mod q step];
DRBG [HMAC-DRBG];
RSA X9.31, PKCS#1 V.1.5, and PKCS#1 V.2.1 (SHA256 – PSS);
SHS [SHA-1, 224, 256, 384, and 512];
HMAC [HMAC-SHA1, SHA224, SHA256, SHA384, and SHA512].
This is the Crypto-C ME default mode on start up.
Secure Operation of Crypto-C ME
15
Mode Description
R_FIPS140_MODE_FIPS140_SSL
FIPS 140-2-approved if used by TLS
protocol implementations.
Provides the same algorithms as R_FIPS140_MODE_FIPS140, plus the
following:
MD5 message digest;
RSA (key wrapping; key establishment methodology provides between
80 and 150 bits of encryption strength);
Diffie-Hellman (1024-bit, 2048-bit, and 4096-bit keys; shared secret
provides between 80 bits and 150 bits of encryption strength); EC Diffie-
Hellman (P192, P224, P256, P384, P521, B163, B233, B283, B409,
B571, K163, K233, K283, K409, K571; shared secret provides between
80 bits and 256 bits of encryption strength).
This mode can be used in the context of the key establishment phase in
the TLSv1 and TLSv1.1 protocol. For more information, see section 7.1
Acceptable Key Establishment Protocols in "Implementation Guidance
for FIPS PUB 140-2 and the Cryptographic Module Validation Program".
The implementation guidance disallows the use of the SSLv2 and
SSLv3 versions. Cipher suites that include non-FIPS 140-2-approved
algorithms are unavailable.
This mode allows implementations of the TLS protocol to operate
Crypto-C ME in a FIPS 140-2-compliant manner with the FIPS 186-2
PRNG as the default.
R_FIPS140_MODE_FIPS140_ECC
FIPS 140-2-approved.
Provides the same algorithms as R_FIPS140_MODE_FIPS140, plus the
following:
ECDSA;
DRBG [Dual ECDRBG]
The random number generator in this mode is the Dual ECDRBG.
R_FIPS140_MODE_FIPS140_SSL_ECC
FIPS 140-2-approved if used by TLS
protocol implementations.
Provides the same algorithms as R_FIPS140_MODE_FIPS140_SSL, plus
the following:
ECDSA;
DRBG [Dual ECDRBG]
The random number generator in this mode is the Dual ECDRBG.
The same restrictions with respect to protocol versions and cipher suites
as in R_FIPS140_MODE_FIPS140_SSL apply.
R_FIPS140_MODE_NON_FIPS140
Not FIPS 140-2-approved.
Allows users to operate Crypto-C ME without any cryptographic
algorithm restrictions.
R_FIPS140_MODE_DISABLED
Not FIPS 140-2-approved.
Indicates that the FIPS140 library is disabled, usually due to an internal
or caller's usage error. No future transition into other modes is
permitted.
In each mode of operation, the complete set of services, which are listed in this Security Policy, are
available to both the Crypto Officer and User roles (with the exception of R_FIPS140_self_test_full(),
which is always reserved for the Crypto Officer).
Secure Operation of Crypto-C ME
16 RSA BSAFE Crypto-C ME 3.0.0.1 Security Policy
Note: Cryptographic keys must not be shared between modes by the user. For example, a key
generated in R_FIPS140_MODE_FIPS140 mode must not be shared with the module running in
R_FIPS140_MODE_NON_FIPS140 mode.
Preventing the access or sharing keys between modes mitigates the risk of untrusted handling of keys
generated in an approved mode of operation.
If a user of Crypto-C ME needs to operate the module in different modes then the user must ensure that all
created cryptographic objects are freed before changing modes, or unexpected results could occur.
Crypto-C ME does not provide long-term cryptographic key storage thus user is responsible for storing,
exporting and importing keys into and from module.
The cryptographic module does not enforce checking for storing or importing of objects. When operating
in an approved mode of operation is it the responsibility of the user to ensure that handling of stored
objects is performed in a manner such that the module mode is preserved.
The user must free all the contexts before changing mode of operation. Sensitive information such as
private key data or intermediate values stored within the objects in volatile memory is enforced to be
zeroized when the resources are freed. The module does not persistently store user keys or CSPs. Thus
keys/CSPs defined in an Approved mode of operation are not accessible when operating in a non-
Approved mode.
3.4 Operating Crypto-C ME
Crypto-C ME operates in R_FIPS140_MODE_FIPS140 by default if the Crypto-C ME library is initialized
with the PRODUCT_DEFAULT_RESOURCE_LIST(). The current Crypto-C ME mode can be determined
calling R_FIPS140_get_mode().
When changing the mode of operation to a FIPS-approved mode, the module must be re-initialized with
the appropriate product resource list, (PRODUCT_DEFAULT_RESOURCE_LIST() or
PRODUCT_FIPS140_SWITCH_RESOURCE_LIST() for R_FIPS140_MODE_FIPS140, or
PRODUCT_FIPS140_SSL_SWITCH_RESOURCE_LIST() for R_FIPS140_MODE_FIPS140_SSL). To change the
module to a non-FIPS-approved mode, call R_FIPS140_set_mode() with one of the information
identifiers listed in Table 6 Crypto-C ME Modes of Operation on page 14.
Note: R_FIPS140_set_mode() can only be used when changing to a non-FIPS-approved mode.
After setting Crypto-C ME into a FIPS 140-2-approved mode, Crypto-C ME enforces that only the
algorithms listed in Table 4 Crypto-C ME FIPS 140-2-approved and allowed Algorithms on page 10 are
available to operators. To disable FIPS 140-2 mode, call R_FIPS140_set_mode() with the
R_FIPS140_MODE_NON_FIPS140 information identifier.
R_FIPS140_self_tests_full() is restricted to operation by the Crypto Officer.
Secure Operation of Crypto-C ME
17
The user of Crypto-C ME links with the static library for their platform, which loads the Crypto-C ME
shared or dynamic link master and provider libraries at runtime. For more information, see "FIPS 140-2
Library and Modes of Operation" in the RSA BSAFE Crypto-C Micro Edition Developer's Guide.
The current Crypto-C ME role can be determined calling R_FIPS140_get_role(). The role can be
changed by calling R_FIPS140_set_role() with one of the information identifiers listed in Table 5
Crypto-C ME Roles on page 14.
3.5 Startup Self-tests
The module always instantinates in R_FIPS140_MODE_FIPS140 approved mode of operation. The
power-up self-tests are called automatically when the module is started up. The power-up self-tests are
not executed when switching between modes.
3.6 Random Number Generator
In FIPS 140‐2 modes, Crypto-C ME provides a default RNG. For R_FIPS140_MODE_FIPS140 and
R_FIPS140_MODE_FIPS140_SSL, Crypto-C ME provides a FIPS 186-2 PRNG (Cert. #962) for all
operations that require the generation of random numbers. For R_FIPS140_MODE_FIPS140_ECC and
R_FIPS140_MODE_FIPS140_SSL_ECC, Crypto-C ME implements a Dual ECDRBG (Cert. #143) internally.
In all modes, users can choose to use another approved RNG other than the default approved RNG,
including the FIPS 186‐2 PRNG (with or without mod q) (Cert. #962), Dual ECDRBG (Cert. #143), or
HMAC DRBG (Cert. #143) when creating a RNG object and setting this object against the operation
requiring random number generation (for example, key generation). However, when DSA is used, the
RNG used internally is always the FIPS 186-2 Change Notice 1 Option 1 with mod q PRNG (Cert. #962).
It is not possible to choose a non-approved RNG in an Approved mode of operation.
This module also includes a non-approved Entropy RNG that is used to generate seed material for the
approved PRNGs; and a non-approved OTP RNG that is not a general purpose random number
generator and is included for testing purposes.
3.6.1 PRNG Seeding
RSA BSAFE® Crypto-C Micro Edition for Samsung MFP SW Platform (VxWorks) implements
deterministic random number generators that can be called to generate random data. The quality of the
random data output from these RNGs depends on the quality of the supplied seeding (entropy). Crypto-
C ME provides internal entropy collection (for example, from high precision timers) where ever
possible, but it is strongly recommended to collect entropy from external sources. This is particularly
critical if developing on embedded platforms where there are only limited internal entropy sources
available. For more information on seeding PRNGs, see "Randomness Recommendations for Security" in
RFC 1750.
Services
18 RSA BSAFE Crypto-C ME 3.0.0.1 Security Policy
Setting the R_CR_INFO_ID_RAND_ENTROPY_FUNC identifier specifies that additional entropy be available.
R_CR_INFO_ID_RAND_ENTROPY_FUNC is set against the R_CR object, which encapsulates the random
number generator, and takes a callback function that the random number generator then uses to gather
additional entropy if needed. For more information on R_CR_INFO_ID_RAND_ENTROPY_FUNC, see the
RSA BSAFE Crypto-C Micro Edition Developer's Guide.
4 Services
The following is the list of services provided by Crypto-C ME.
Table 7. Services
Service Description Input Output
Encryption Used to encrypt data using symmetric-
key algorithms
API call parameters,
key, ciphertext
Status, ciphertext
Decryption Used to decrypt data using symmetric-
key algorithms
API call parameters,
key, ciphertext
Status, plaintext
Digital signature
generation
Used to generate digital signatures
using asymmetric key algorithms
API call parameters,
key, message
Status, signature
Digital signature
verification
Used to verify digital signatures using
asymmetric key algorithms
API call parameters,
key, signature,
message
Status
Hashing Used to generate and verify digests
using hash algorithms
API call parameters,
message
Status, hash
MAC Used to generate or verify data integrity
with HMAC algorithms
API call parameters,
key, message
Status, hash
Random number
generation
Used to generate random data API call parameters Status, random bits
Key generation Symmetric, asymmetric and MAC keys
generation
API call parameters Status, key, keypair
Key establishment
primitives
Key wrapping and key agreement
functionality
API call parameters,
key
Status, key
Self-test (Crypto
Officer service)
Perform self-tests None Status
Show status Functions that provide module status
information
API call parameters Status
Zeroization Used to destroy CSPs API call parameters, all
CSPs
Status
Acronyms and Definitions
19
Utility Miscellaneous utility functionality API call parameters Status
When the module in a not-Approved mode the services are not approved against FIPS 140-2 standard
and can perform not-Approved security algorithms and functions.
In Approved mode of operation the services provide only FIPS 140-2 approved and allowed security
algorithms and functions.
5 Acronyms and Definitions
The following table lists and describes the acronyms and definitions used throughout this document.
Table 8. Acronyms and Definitions
Term Definition
AES Advanced Encryption Standard. A fast block cipher with a 128-bit block, and keys of lengths
128, 192, and 256 bits. Replaces DES as the US symmetric encryption standard.
API Application Programming Interface.
Attack Either a successful or unsuccessful attempt at breaking part or all of a cryptosystem. Various
attack types include an algebraic attack, birthday attack, brute force attack, chosen ciphertext
attack, chosen plaintext attack, differential cryptanalysis, known plaintext attack, linear
cryptanalysis, and middleperson attack.
CBC Cipher Block Chaining. A mode of encryption in which each ciphertext depends upon all
previous ciphertexts. Changing the Initialization Vector (IV) alters the ciphertext produced by
successive encryptions of an identical plaintext.
CFB Cipher Feedback. A mode of encryption that produces a stream of ciphertext bits rather than a
succession of blocks. In other respects, it has similar properties to the CBC mode of operation.
CRNG Continuous Random Number Generation.
CTR Counter mode of encryption that turns a block cipher into a stream cipher. It generates the next
keystream block by encrypting successive values of a counter.
DES Data Encryption Standard. A symmetric encryption algorithm with a 56-bit key. See also Triple
DES.
Diffie-Hellman The Diffie-Hellman asymmetric key exchange algorithm. There are many variants, but typically
two entities exchange some public information (for example, public keys or random values) and
combines them with their own private keys to generate a shared session key. As private keys
are not transmitted, eavesdroppers are not privy to all of the information that composes the
session key.
DSA Digital Signature Algorithm. An asymmetric algorithm for creating digital signatures.
DRBG Deterministic Random Bit Generator.
Acronyms and Definitions
20 RSA BSAFE Crypto-C ME 3.0.0.1 Security Policy
Term Definition
Dual ECDRBG Dual Elliptic Curve Deterministic Random Bit Generator.
EC Elliptic Curve.
ECAES Elliptic Curve Asymmetric Encryption Scheme.
ECB Electronic Codebook. A mode of encryption that divides a message into blocks and encrypts
each block separately.
ECC Elliptic Curve Cryptography.
ECDH Elliptic Curve Diffie-Hellman.
ECDHC Elliptic Curve Diffie-Hellman with Cofactor. Described NIST SP 800-56A, March 2007, Section
5.7.1.2 Elliptic Curve Cryptography Cofactor Diffie-Hellman (ECC CDH) Primitive.
ECDSA Elliptic Curve Digital Signature Algorithm.
ECIES Elliptic Curve Integrated Encryption Scheme.
Encryption The transformation of plaintext into an apparently less readable form (called ciphertext) through
a mathematical process. The ciphertext can be read by anyone who has the key that decrypts
(undoes the encryption) the ciphertext.
FIPS Federal Information Processing Standards.
GCM Galois/Counter Mode. A mode of encryption that combines the Counter mode of encryption with
Galois field multiplication for authentication.
GMAC Galois Message Authentication Code. An authentication only variant of GCM.
HMAC Keyed-Hashing for Message Authentication Code.
HMAC DRBG HMAC Deterministic Random Bit Generator.
IV Initialization Vector. Used as a seed value for an encryption operation.
KAT Known Answer Test.
Key A string of bits used in cryptography, allowing people to encrypt and decrypt data. Can be used
to perform other mathematical operations as well. Given a cipher, a key determines the
mapping of the plaintext to the ciphertext. The types of keys include distributed key, private key,
public key, secret key, session key, shared key, subkey, symmetric key, and weak key.
MD5 A secure hash algorithm created by Ron Rivest. MD5 hashes an arbitrary-length input into a 16-
byte digest.
NIST National Institute of Standards and Technology. A division of the US Department of Commerce
(formerly known as the NBS) which produces security and cryptography-related standards.
OFB Output Feedback. A mode of encryption in which the cipher is decoupled from its ciphertext.
OS Operating System.
Acronyms and Definitions
21
Term Definition
PC Personal Computer.
PDA Personal Digital Assistant.
PPC PowerPC.
privacy The state or quality of being secluded from the view or presence of others.
private key The secret key in public key cryptography. Primarily used for decryption but also used for
encryption with digital signatures.
PRNG Pseudo-random Number Generator.
RC2 Block cipher developed by Ron Rivest as an alternative to the DES. It has a block size of 64 bits
and a variable key size. It is a legacy cipher and RC5 should be used in preference.
RC4 Symmetric algorithm designed by Ron Rivest using variable length keys (usually 40-bit or
128-bit).
RC5 Block cipher designed by Ron Rivest. It is parameterizable in its word size, key length, and
number of rounds. Typical use involves a block size of 64 bits, a key size of 128 bits, and either
16 or 20 iterations of its round function.
RNG Random Number Generator.
RSA Public key (asymmetric) algorithm providing the ability to encrypt data and create and verify
digital signatures. RSA stands for Rivest, Shamir, and Adleman, the developers of the RSA
public key cryptosystem.
SHA Secure Hash Algorithm. An algorithm that creates a unique hash value for each possible input.
SHA takes an arbitrary input that is hashed into a 160-bit digest.
SHA-1 A revision to SHA to correct a weakness. It produces 160-bit digests. SHA-1 takes an arbitrary
input that is hashed into a 20-byte digest.
SHA-2 The NIST-mandated successor to SHA-1, to complement the Advanced Encryption Standard. It
is a family of hash algorithms (SHA-224, SHA-256, SHA-384 and SHA-512) that produce
digests of 224, 256, 384 and 512 bits respectively.
Triple DES A variant of DES that uses three 56-bit keys.
Contacting RSA
22 RSA BSAFE Crypto-C ME 3.0.0.1 Security Policy
6 Contacting RSA
The RSA Web site contains the latest news, security bulletins and information about coming events.
The RSA BSAFE Web site contains product information.
The RSA Laboratories Web site contains frequently asked questions.
6.1 Support and Service
If you have any questions or require additional information, see RSA Support or RSA SecurCare Online.
6.2 Feedback
We welcome your feedback on the documentation produced by RSA. Please e-mail us at
userdocs@rsa.com.