Cryptographic Algorithms Object Registration

The CSOR has allocated the following registration branch for cryptographic algorithm objects:

nistAlgorithms OBJECT IDENTIFIER ::= { csor nistAlgorithm(4) }

The CSOR only registers only NIST-approved cryptographic algorithms. Where the algorithm has already been assigned object identifiers (e.g., for RSA PKCS#1 digital signature), new OIDs will not be assigned. Please check back for a page that identifies the preferred OIDs for these algorithms.

Additional information on NIST cryptographic algorithm activities is available.

Registered Objects

• ASN.1 Modules
• AES

ASN.1 Modules

Often, cryptographic algorithm objects are defined for use with other ASN.1 types. In particulr, OIDs intended for use in the ASN.1 type Algorithm may be associated with parameter definitions. This information is contained in an ASN.1 module. ASN.1 modules may be assigned OIDs to uniquely identify different versions of the ASN.1 constructs. The CSOR algorithm arc includes a sub arrc for ASN.1 modules. To date, a single module has been registered to support AES project.

csorModules OBJECT IDENTIFIER ::= { nistalgorithms modules (0) }

aesModule1 OBJECT IDENTIFIER ::= { csorModules aes (1) }

AES Registered Objects

The following objects have been registered to support AES project.

aes OBJECT IDENTIFIER ::= { nistAlgorithms 1 }

-- 128 bit AES information object identifiers --

id-aes128-ECB OBJECT IDENTIFIER ::= { aes 1 }

id-aes128-CBC OBJECT IDENTIFIER ::= { aes 2 }

id-aes128-OFB OBJECT IDENTIFIER ::= { aes 3 }

id-aes128-CFB OBJECT IDENTIFIER ::= { aes 4 }

-- 192 bit AES information object identifiers --

id-aes192-ECB OBJECT IDENTIFIER ::= { aes 21 }

id-aes192-CBC OBJECT IDENTIFIER ::= { aes 22 }

id-aes192-OFB OBJECT IDENTIFIER ::= { aes 23 }

id-aes192-CFB OBJECT IDENTIFIER ::= { aes 24 }

-- 256 bit AES information object identifiers --

id-aes256-ECB OBJECT IDENTIFIER ::= { aes 41 }

id-aes256-CBC OBJECT IDENTIFIER ::= { aes 42 }

id-aes256-OFB OBJECT IDENTIFIER ::= { aes 43 }

id-aes256-CFB OBJECT IDENTIFIER ::= { aes 44 }

These object identifiers may be used in the ASN.1 structured type Algorithm. The complete ASN.1 for these objects and any associated parameters is available in the following ASN.1 module.