Microsoft Enhanced DSS & Diffie-Hellman Cryptographic Provider

The Microsoft enhanced DSS and Diffie-Hellman Cryptographic Provider supports Diffie-Hellman key exchange, SHA hashing, DSA data signing and verification (FIPS 186-2), and RC4 symmetric encryption algorithms.

Provider type: **PROV\_DSS\_DH** Provider name: **MS\_ENH\_DSS\_DH\_PROV**

This cryptographic provider supports the following algorithms.

Algorithm ID	Algorithm type	Default size (bits)	Description
CALG_CYLINK_MEK	Data encryption	40	CYLINK message encryption algorithm.
CALG_RC2	Data encryption	128	RSA RC2.
CALG_RC4	Data encryption	128	RSA RC4.
CALG_DES	Data encryption	56	Data Encryption Standard (DES).
CALG_3DES_112	Data encryption	112	Two key triple DES.
CALG_3DES	Data encryption	168	Three key triple DES.
CALG_SHA1	Hash	160	Secure Hash Algorithm 1 (SHA-1).
CALG_MD5	Hash	128	Message Digest 5 (MD5).
CALG_DSS_SIGN	Signature	1024	Digital Signature Algorithm (DSA).
CALG_DH_SF	Key exchange	1024	Store and forward Diffie-Hellman key exchange algorithm.
CALG_DH_EPHEM	Key exchange	1024	Diffie-Hellman ephemeral algorithm.