Microsoft Enhanced Cryptographic Provider
The Microsoft Enhanced Cryptographic Provider, called the Enhanced Provider, supports the same capabilities as the Microsoft Base Cryptographic Provider, called the Base Provider. The Enhanced Provider supports stronger security through longer keys and additional algorithms. It can be used with all versions of CryptoAPI.
To maintain backward compatibility with earlier provider versions, the provider name, as defined in the Wincrypt.h header file, retains the version 1.0 designation. However, version 2.0 of this provider is also shipping. To determine the version of the provider in use, call CryptGetProvParam with the dwParam argument set to PP_VERSION. Version 2.0 is in use if 0x0200 is returned.
Provider Type: PROV_RSA_FULL
Provider Name: Microsoft Enhanced Cryptographic Provider v1.
The following table shows the algorithms supported by the Microsoft Enhanced Cryptographic Provider.
| Algorithm ID | Description | Comments |
|---|---|---|
| CALG_MD2 | MD2 hashing algorithm | No comment. |
| CALG_MD5 | MD5 hashing algorithm | No comment. |
| CALG_SHA | SHA hashing algorithm | No comment. |
| CALG_SHA1 | Same as CALG_SHA | No comment. |
| CALG_MAC | MAC keyed-hash algorithm | Block cipher MAC. |
| CALG_HMAC | MAC keyed-hash algorithm | HMAC computation. |
| CALG_SSL3_SHAMD5 | SLL3 client authentication algorithm | No comment. |
| CALG_RSA_SIGN | RSA public-key signature algorithm | Key length: Can be set from 384 bits to 16,384 bits in 8-bit increments.
Default key length: 1,024 bits. Signature conforms to PKCS #1. |
| CALG_RSA_KEYX | RSA public-key exchange algorithm | Key length: Can be set from 384 bits to 16,384 bits in 8-bit increments.
Default key length: 1,024 bits. |
| CALG_RC2 | RC2 block encryption algorithm | Default Key length: 128 bits.
Default mode: Cipher block chaining. Block size: 64 bits. Salt length: 88 bits. |
| CALG_RC4 | RC4 stream encryption algorithm | Default Key length: 128 bits.
Salt length: 88 bits. |
| CALG_RC5 | RC5 block encryption algorithm | Key length: 128 bits.
No salt allowed. |
| CALG_DES | DES encryption | DES encryption Key Length: 56 bits.
Default mode: Cipher block chaining. Block size: 64 bits. No salt allowed. |
| CALG_3DES_112 | Two-key triple DES encryption | Key Length: 112 bits.
Default mode: Cipher block chaining. Block size: 64 bits. No salt allowed. |
| CALG_3DES | Triple DES | Key Length: 168 bits.
Default mode: Cipher block chaining. Block size: 64 bits. No salt allowed. |
See Also
Cryptography | Microsoft Cryptographic System | Microsoft RSA Base Provider | Key Length Comparison | Certificates
Last updated on Thursday, April 08, 2004
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