2.2.5.14 Phase 1 Suite - 2.1 Hash Algorithm

Keys: Software\Policies\...\Phase1CryptoSet\<wszSetId>\<SuiteIndex>.

Value: "2_1Hash"

Type: REG_SZ.

Size: Equal to size of the Data field.

Data: this value is a Unicode string encoded using the following grammar rule:

 HASH2-1-VAL = "SHA256" / "SHA384"

SHA256: This token represents the FW_CRYPTO_HASH_SHA256 enumeration value as defined in [MS-FASP] section 2.2.68.

SHA384: This token represents the FW_CRYPTO_HASH_SHA384 enumeration value as defined in [MS-FASP] section 2.2.68.

This value represents the Hash field of the FW_PHASE1_CRYPTO_SUITE structure as defined in [MS-FASP] section 2.2.70. If this value appears in the suite key, then a SkipVersion value with a version of 0x0200 or higher MUST be present.