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Microsoft DSS and Diffie-Hellman Cryptographic Provider (Windows Embedded CE 6.0)

1/6/2010

The Microsoft Base DSS and Diffie-Hellman Cryptographic Provider supports Diffie-Hellman (D-H) key exchange, SHA hashing, DSS data signing, and DSS signature verification. This cryptographic provider can be exported to other countries or regions, and is currently provided by Windows CE .NET 4.2 and later.

Provider Type: PROV_DSS_DH

Provider Name: MS_ENH_DSS_DH_PROV

The following table shows the algorithms supported by the Microsoft DSS and Diffie-Hellman Cryptographic Provider.

Algorithm ID Description Comments

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

Triple DES

Key Length: 168 bits.

Default mode: cipher block chaining.

Block size: 64 bits.

No salt allowed.

CALG_MD5

MD5 hashing algorithm.

Provided only for hashing.

CALG_SHA

SHA hashing algorithm.

Must be used for DSS signatures.

CALG_SHA1

Same as CALG_SHA.

No comment.

CALG_DSS_SIGN

DSS public/private-key signature algorithm.

Key length: can be set, 512 bits to 1,024 bits in 64 bit increments.

Default key length: 1,024 bits.

CALG_DH_SF

Store and Forward D-H key exchange.

Key length: can be set, 384 bits to 512 bits in 8 bit increments.

Default key length: 512 bits.

CALG_DH_EPHEM

Ephemeral D-H key exchange.

Key length: can be set, 384 bits to 512 bits in 8 bit increments.

Default key length: 512 bits.

See Also

Concepts

Microsoft Cryptographic System

Other Resources

Cryptography