CRYPT_ALGORITHM_IDENTIFIER

The CRYPT_ALGORITHM_IDENTIFIER structure is used to describe any algorithm, where the parameters contained in a CRYPT_OBJID_BLOB are in their encoded representation. For most algorithm types, there are no parameters (Parameters.cbData == 0), and those that do have parameters are listed under the Parameters member.

typedef struct _CRYPT_ALGORITHM_IDENTIFIER {
    LPSTR                          pszObjId;
    CRYPT_OBJID_BLOB               Parameters;
} CRYPT_ALGORITHM_IDENTIFIER,     *PCRYPT_ALGORITHM_IDENTIFIER;

Members

pszObjId

The following are the definitions of various algorithm object identifiers, and can also be found in Wincrypt.h:

Name	Base/Suffix	Value
//RSA
szOID_RSA	"1.2.840.113549"
szOID_PKCS	szOID_RSA ".1"	"1.2.840.113549.1"
szOID_RSA_HASH	szOID_RSA ".2"	"1.2.840.113549.2"
szOID_RSA_ENCRYPT	szOID_RSA ".3"	"1.2.840.113549.3"
szOID_PKCS_1	szOID_PKCS ".1"	"1.2.840.113549.1.1"
szOID_PKCS_2	szOID_PKCS ".2"	"1.2.840.113549.1.2"
szOID_PKCS_3	szOID_PKCS ".3"	"1.2.840.113549.1.3"
szOID_PKCS_4	szOID_PKCS ".4"	"1.2.840.113549.1.4"
szOID_PKCS_5	szOID_PKCS ".5"	"1.2.840.113549.1.5"
szOID_PKCS_6	szOID_PKCS ".7"	"1.2.840.113549.1.6"
szOID_PKCS_7	szOID_PKCS ".7"	"1.2.840.113549.1.7"
szOID_PKCS_8	szOID_PKCS ".8"	"1.2.840.113549.1.8"
szOID_PKCS_9	szOID_PKCS ".9"	"1.2.840.113549.1.9"
szOID_PKCS_10	szOID_PKCS ".10"	"1.2.840.113549.1.10"
szOID_PKCS_12	szOID_PKCS ".12"	"1.2.840.113549.1.12"
szOID_RSA_MD2	szOID_RSA_HASH ".2"	"1.2.840.113549.2.2"
szOID_RSA_MD4	szOID_RSA_HASH ".4"	"1.2.840.113549.2.4"
szOID_RSA_MD5	szOID_RSA_HASH ".5"	"1.2.840.113549.2.5"
szOID_RSA_RSA	szOID_PKCS_1 ".1"	"1.2.840.113549.1.1.1"
szOID_RSA_MD2RSA	szOID_PKCS_1 ".2"	"1.2.840.113549.1.1.2"
szOID_RSA_MD4RSA	szOID_PKCS_1 ".3"	"1.2.840.113549.1.1.3"
szOID_RSA_MD5RSA	szOID_PKCS_1 ".4"	"1.2.840.113549.1.1.4"

Name	Base/Suffix	Value
// The following two are per Bob Baldwin (baldwin@rsa.com, 5.7.96)
szOID_RSA_SHA1RSA	szOID_PKCS_1 ".5"	"1.2.840.113549.1.1.5"
szOID_RSA_SETOAEP_RSA	szOID_PKCS_1 ".6"	"1.2.840.113549.1.1.6"
szOID_RSA_DH	szOID_PKCS_3 ".1"	"1.2.840.113549.1.3.1
szOID_RSA_data	szOID_PKCS_7 ".1"	"1.2.840.113549.1.7.1"
szOID_RSA_signedData	szOID_PKCS_7 ".2"	"1.2.840.113549.1.7.2"
szOID_RSA_envelopedData	szOID_PKCS_7 ".3"	"1.2.840.113549.1.7.3"
szOID_RSA_signEnvData	szOID_PKCS_7 ".4"	"1.2.840.113549.1.7.4"
szOID_RSA_digestedData	szOID_PKCS_7 ".5"	"1.2.840.113549.1.7.5"
szOID_RSA_hashedData	szOID_PKCS_7 ".5"	"1.2.840.113549.1.7.5"
szOID_RSA_encryptedData	szOID_PKCS_7 ".6"	"1.2.840.113549.1.7.6"
szOID_RSA_emailAddr	szOID_PKCS_9 ".1"	"1.2.840.113549.1.9.1"
szOID_RSA_unstructName	szOID_PKCS_9 ".2"	"1.2.840.113549.1.9.2"
szOID_RSA_contentType	szOID_PKCS_9 ".3"	"1.2.840.113549.1.9.3"
szOID_RSA_messageDigest	szOID_PKCS_9 ".4"	"1.2.840.113549.1.9.4"
szOID_RSA_signingTime	szOID_PKCS_9 ".5"	"1.2.840.113549.1.9.5"
szOID_RSA_counterSign	szOID_PKCS_9 ".6"	"1.2.840.113549.1.9.6"
szOID_RSA_challengePwd	szOID_PKCS_9 ".7"	"1.2.840.113549.1.9.7"
szOID_RSA_unstructAddr	szOID_PKCS_9 ".8"	"1.2.840.113549.1.9.8"
szOID_RSA_extCertAttrs	szOID_PKCS_9 ".9"	"1.2.840.113549.1.9.9"
szOID_RSA_SMIMECapabilities	szOID_PKCS_9 ".15"	"1.2.840.113549.1.9.15"
szOID_RSA_preferSignedData	szOID_RSA_SMIMECapabilities	"1.2.840.113549.1.9.15.1"
szOID_RSA_RC2CBC	szOID_RSA_ENCRYPT ".2"	"1.2.840.113549.3.2"
szOID_RSA_RC4	szOID_RSA_ENCRYPT ".4"	"1.2.840.113549.3.4"
szOID_RSA_DES_EDE3_CBC	szOID_RSA_ENCRYPT ".7"	"1.2.840.113549.3.7"
szOID_RSA_RC5_CBCPad	szOID_RSA_ENCRYPT ".9"	"1.2.840.113549.3.9"
szOID_ANSI_x942	"1.2.840.10046"
szOID_ANSI_x942_DH	szOID_ANSI_x942 ".2.1"	"1.2.840.10046.2.1"
szOID_X957	"1.2.840.10040"
szOID_X957_DSA	szOID_x957 ".4.1"	"1.2.840.10040.4.1"
//ITU-T Useful Definitions
szOID_DS	"2.5"
szOID_DSALG	szOID_DS ".8"	"2.5.8"
szOID_DSALG_CRPT	szOID_DSALG ".1"	"2.5.8.1"
szOID_DSALG_HASH	szOID_DSALG ".2"	"2.5.8.2"
szOID_DSALG_SIGN	szOID_DSALG ".3"	"2.5.8.3"
szOID_DSALG_RSA	szOID_DSALG_CRPT ".1"	"2.5.8.1.1"
//NIST OSE Implementers' Workshop (OIW) //http://nemo.ncsl.nist.gov/oiw/agreements/stable/OSI/12s_9506.w51 //http://nemo.ncsl.nist.gov/oiw/agreements/working/OSI/12w_9503.w51
szOID_OIW	"1.3.14"

Name	Base/Suffix	Value
//NIST OSE Implementers' Workshop (OIW) Security SIG algorithm //identifiers
szOID_OIWSEC	szOID_OIW ".3.2"	"1.3.14.3.2"
szOID_OIWSEC_md4RSA	szOID_OIWSEC ".2"	"1.3.14.3.2.2"
szOID_OIWSEC_md5RSA	szOID_OIWSEC ".3"	"1.3.14.3.2.3"
szOID_OIWSEC_md4RSA2	szOID_OIWSEC ".4"	"1.3.14.3.2.4"
szOID_OIWSEC_desECB	szOID_OIWSEC ".6"	"1.3.14.3.2.6"
szOID_OIWSEC_desCBC	szOID_OIWSEC ".7"	"1.3.14.3.2.7"
szOID_OIWSEC_desOFB	szOID_OIWSEC ".8"	"1.3.14.3.2.8"
szOID_OIWSEC_desCFB	szOID_OIWSEC ".9"	"1.3.14.3.2.9"
szOID_OIWSEC_desMAC	szOID_OIWSEC ".10"	"1.3.14.3.2.10"
szOID_OIWSEC_rsaSign	szOID_OIWSEC ".11"	"1.3.14.3.2.11"
szOID_OIWSEC_dsa	szOID_OIWSEC ".12"	"1.3.14.3.2.12"
szOID_OIWSEC_shaDSA	szOID_OIWSEC ".13"	"1.3.14.3.2.13"
szOID_OIWSEC_mdc2RSA	szOID_OIWSEC ".14"	"1.3.14.3.2.14"
szOID_OIWSEC_shaRSA	szOID_OIWSEC ".15"	"1.3.14.3.2.15"
szOID_OIWSEC_dhCommMod	szOID_OIWSEC ".16"	"1.3.14.3.2.16"
szOID_OIWSEC_desEDE	szOID_OIWSEC ".17"	"1.3.14.3.2.17"
szOID_OIWSEC_sha	szOID_OIWSEC ".18"	"1.3.14.3.2.18"
szOID_OIWSEC_mdc2	szOID_OIWSEC ".19"	"1.3.14.3.2.19"
szOID_OIWSEC_dsaComm	szOID_OIWSEC ".20"	"1.3.14.3.2.20"
szOID_OIWSEC_dsaCommSHA	szOID_OIWSEC ".21"	"1.3.14.3.2.21"
szOID_OIWSEC_rsaXchg	szOID_OIWSEC ".22"	"1.3.14.3.2.22"
szOID_OIWSEC_keyHashSeal	szOID_OIWSEC ".23"	"1.3.14.3.2.23"
szOID_OIWSEC_md2RSASign	szOID_OIWSEC ".24"	"1.3.14.3.2.24"
szOID_OIWSEC_md5RSASign	szOID_OIWSEC ".25"	"1.3.14.3.2.25"
szOID_OIWSEC_sha1	szOID_OIWSEC ".26"	"1.3.14.3.2.26"
szOID_OIWSEC_dsaSHA1	szOID_OIWSEC ".27"	"1.3.14.3.2.27"
szOID_OIWSEC_dsaCommSHA1	szOID_OIWSEC ".28"	"1.3.14.3.2.28"
szOID_OIWSEC_sha1RSASign	szOID_OIWSEC ".29"	"1.3.14.3.2.29"

Name	Base/Suffix	Value
//NIST OSE Implementers' Workshop (OIW) Directory SIG algorithm //identifiers
szOID_OIWDIR	szOID_OIW ".7.2"	"1.3.14.7.2"
szOID_OIWDIR_CRPT	szOID_OIWDIR ".1"	"1.3.14.7.2.1"
szOID_OIWDIR_HASH	szOID_OIWDIR ".2"	"1.3.14.7.2.2"
szOID_OIWDIR_SIGN	szOID_OIWDIR ".3"	"1.3.14.7.2.3"
szOID_OIWDIR_md2	szOID_OIWDIR_HASH ".1"	"1.3.14.7.2.2.1"
szOID_OIWDIR_md2RSA	szOID_OIWDIR_SIGN ".1"	"1.3.14.7.2.3.1"

Name	Base/Suffix	Value
//INFOSEC Algorithms joint-iso-ccitt(2) country(16) us(840) organization(1) us-government(101) dod(2) id-infosec(1)
szOID_INFOSEC	"2.16.840.1.101.2.1"
szOID_INFOSEC_sdnsSignature	szOID_INFOSEC".1.1"	"2.16.840.1.101.2.1.1.1"
szOID_INFOSEC_mosaicSignature	szOID_INFOSEC".1.2"	"2.16.840.1.101.2.1.1.2"
szOID_INFOSEC_sdnsConfidentiality	szOID_INFOSEC".1.3"	"2.16.840.1.101.2.1.1.3"
szOID_INFOSEC_mosaicConfidentiality	szOID_INFOSEC".1.4"	"2.16.840.1.101.2.1.1.4"
szOID_INFOSEC_sdnsIntegrity	szOID_INFOSEC".1.5"	"2.16.840.1.101.2.1.1.5"
szOID_INFOSEC_mosaicIntegrity	szOID_INFOSEC".1.6"	"2.16.840.1.101.2.1.1.6"
szOID_INFOSEC_sdnsTokenProtection	szOID_INFOSEC".1.7"	"2.16.840.1.101.2.1.1.7"
szOID_INFOSEC_mosaicTokenProtection	szOID_INFOSEC".1.8"	"2.16.840.1.101.2.1.1.8"
szOID_INFOSEC_sdnsKeyManagement	szOID_INFOSEC".1.9"	"2.16.840.1.101.2.1.1.9"
szOID_INFOSEC_mosaicKeyManagement	szOID_INFOSEC".1.10"	"2.16.840.1.101.2.1.1.10"
szOID_INFOSEC_sdnsKMandSig	szOID_INFOSEC".1.11"	"2.16.840.1.101.2.1.1.11"
szOID_INFOSEC_mosaicKMandSig	szOID_INFOSEC".1.12"	"2.16.840.1.101.2.1.1.12"
szOID_INFOSEC_SuiteASignature	szOID_INFOSEC".1.13"	"2.16.840.1.101.2.1.1.13"
szOID_INFOSEC_SuiteAConfidentiality	szOID_INFOSEC".1.14"	"2.16.840.1.101.2.1.1.14"
szOID_INFOSEC_SuiteAIntegrity	szOID_INFOSEC".1.15"	"2.16.840.1.101.2.1.1.15"
szOID_INFOSEC_SuiteATokenProtection	szOID_INFOSEC".1.16"	"2.16.840.1.101.2.1.1.16"
szOID_INFOSEC_SuiteAKeyManagement	szOID_INFOSEC".1.17"	"2.16.840.1.101.2.1.1.17"
szOID_INFOSEC_SuiteAKMandSig	szOID_INFOSEC".1.18"	"2.16.840.1.101.2.1.1.18"
szOID_INFOSEC_mosaicUpdatedSig	szOID_INFOSEC".1.19"	"2.16.840.1.101.2.1.1.19"
szOID_INFOSEC_mosaicKMandUpdSig	szOID_INFOSEC".1.20"	"2.16.840.1.101.2.1.1.20"
szOID_INFOSEC_mosaicUpdatedInteg	szOID_INFOSEC".1.21"	"2.16.840.1.101.2.1.1.21"

Parameters

An algorithm-specific encoded value. In the normal case there are no parameters (indicated by Parameters.cbData == 0).

The following algorithms have encoded parameters. See the predefined constants for encode/decode details.

Algorithm name Predefined constant

szOID_OIWSEC_dsa X509_DSS_PARAMETERS

szOID_RSA_RC2CBC PKCS_RC2_CBC_PARAMETERS

szOID_OIWSEC_desCBC X509_OCTET_STRING

szOID_RSA_DES_EDE3_CBC X509_OCTET_STRING

szOID_RSA_RC4 X509_OCTET_STRING

Algorithm name	Predefined constant
szOID_OIWSEC_dsa	X509_DSS_PARAMETERS
szOID_RSA_RC2CBC	PKCS_RC2_CBC_PARAMETERS
szOID_OIWSEC_desCBC	X509_OCTET_STRING
szOID_RSA_DES_EDE3_CBC	X509_OCTET_STRING
szOID_RSA_RC4	X509_OCTET_STRING

CRYPT_ALGORITHM_IDENTIFIER

Members

See Also