Source code of Windows XP (NT5)
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// ALG_ID crackers
#define GET_ALG_CLASS(x) (x & (3 << 14))
#define GET_ALG_TYPE(x) (x & (15 << 10))
#define GET_ALG_SID(x) (x & (511))
// Algorithm classes
//
#define ALG_CLASS_SIGNATURE (0 << 14)
#define ALG_CLASS_MSG_ENCRYPT (1 << 14)
#define ALG_CLASS_DATA_ENCRYPT (2 << 14)
#define ALG_CLASS_HASH (3 << 14)
#define ALG_CLASS_KEY_EXCHANGE (4 << 14)
// Algorithm types
//
#define ALG_TYPE_ANY (0)
#define ALG_TYPE_DSA (1 << 10)
#define ALG_TYPE_RSA (2 << 10)
#define ALG_TYPE_BLOCK (3 << 10)
#define ALG_TYPE_STREAM (4 << 10)
// Some RSA sub-ids
//
#define ALG_SID_RSA_ANY 0
#define ALG_SID_RSA_PKCS 1
#define ALG_SID_RSA_MSATWORK 2
#define ALG_SID_RSA_ENTRUST 3
#define ALG_SID_RSA_PGP 4
// Some DSS sub-ids
//
#define ALG_SID_DSS_ANY 0
#define ALG_SID_DSS_PKCS 1
#define ALG_SID_DSS_DMS 2
// Block cipher sub ids
// DES sub_ids
#define ALG_SID_DES_ECB 0
#define ALG_SID_DES_CBC 1
#define ALG_SID_DES_CFB 2
#define ALG_SID_DES_OFB 3
// RC2 sub-ids
#define ALG_SID_RC2_ECB 4
#define ALG_SID_RC2_CBC 5
#define ALG_SID_RC2_CFB 6
#define ALG_SID_RC2_OFB 7
// Stream cipher sub-ids
#define ALG_SID_RC4 0
#define ALG_SID_SEAL 1
// Hash sub ids
#define ALG_SID_MD2 0
#define ALG_SID_MD4 1
#define ALG_SID_MD5 2
#define ALG_SID_SHA 3
// Our example sub-id
#define ALG_SID_EXAMPLE 80
typedef int ALG_ID;
#define MD2 ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_MD2
#define MD4 ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_MD4
#define MD5 ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_MD5
#define SHA ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_SHA
#define RSA_SIGNATURE ALG_CLASS_SIGNATURE | ALG_TYPE_RSA | ALG_SID_RSA_ANY
#define DSS_SIGNATURE ALG_CLASS_SIGNATURE | ALG_TYPE_DSA | ALG_SID_DSA_ANY
#define RSA_KEYEXCHANGE ALG_CLASS_KEY_EXCHANGE | ALG_TYPE_RSA | ALG_SID_RSA_ANY
#define DES_ECB ALG_CLASS_DATA_ENCRYPT | ALG_TYPE_BLOCK | ALG_SID_DES_ECB
#define DES_CBC ALG_CLASS_DATA_ENCRYPT | ALG_TYPE_BLOCK | ALG_SID_DES_CBC
#define DES_CFB ALG_CLASS_DATA_ENCRYPT | ALG_TYPE_BLOCK | ALG_SID_DES_CFB
#define DES_OFB ALG_CLASS_DATA_ENCRYPT | ALG_TYPE_BLOCK | ALG_SID_DES_OFB
#define RC2_ECB ALG_CLASS_DATA_ENCRYPT | ALG_TYPE_BLOCK | ALG_SID_RC2_ECB
#define RC2_CBC ALG_CLASS_DATA_ENCRYPT | ALG_TYPE_BLOCK | ALG_SID_RC2_CBC
#define RC2_CFB ALG_CLASS_DATA_ENCRYPT | ALG_TYPE_BLOCK | ALG_SID_RC2_CFB
#define RC2_OFB ALG_CLASS_DATA_ENCRYPT | ALG_TYPE_BLOCK | ALG_SID_RC2_OFB
#define RC4 ALG_CLASS_DATA_ENCRYPT | ALG_TYPE_STREAM | ALG_SID_RC4
#define SEAL ALG_CLASS_DATA_ENCRYPT | ALG_TYPE_STREAM | ALG_SID_SEAL
#define MAXNAMELEN 0x60
#define BASIC_RSA 0
#define MD2_WITH_RSA 1
#define MD5_WITH_RSA 2
#define RC4_STREAM 3
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