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Key Management and Authorization Mechanisms for Secure Data Encryption

Explore proposals for deriving keys, managing PKCS#11 modules, resolving contradictions, and clarifying attribute template inheritance, with a focus on secure data encryption. Discuss issues like C_CopyObject and key generation for HMAC, emphasizing the relevance of domain parameters to key-pair generation.

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Key Management and Authorization Mechanisms for Secure Data Encryption

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  1. Proposals • BF, TF, DES OFB and CFB • Mechanism, Token, Session Objects etc. • Derive key by encryption of data • KCVs • PKCS #11 module management • Auth objects & ACLs • C_ReEncrypt • Attribute template inheritance

  2. Clarifications • resolve CKA_KEY_TYPE contradiction • Delphi header files • non-MS developer tools • key generation for HMAC • Domain parameters relevance to key-pair gen • C_CopyObject – CKM_MODIFIABLE change constraints

  3. Other Issues • Document Re-org

  4. Auth Objects & ACLs K CKA_CLASS=CKO_SECRET_KEY CKA_KEY_TYPE=CKK_DES2 CKA_UNWRAP=1 CKA_ACL= enc,U1 dec,0 sign,U2 modify=SO U1 CKA_CLASS=CKO_AUTHENTICATION CKA_AUTH_TYPE=CKAT_PIN CKA_VALUE=***** CKA_AUTHENTICATED=0 CKA_ACL= modify=so U2 CKA_CLASS=CKO_AUTHENTICATION CKA_AUTH_TYPE=CKAT_PIN CKA_VALUE=***** CKA_AUTHENTICATED=0 CKA_COUNT=1 CKA_ACL= modify=so SO CKA_CLASS=CKO_AUTHENTICATION CKA_AUTH_TYPE=CKAT_PIN CKA_VALUE=***** CKA_AUTHENTICATED=0 CKA_ACL= modify=so AclSet ::= Sequence { Acl ::= Sequence { AccessType ::= INTEGER AclValue ::= ObjectHandle } }

  5. Attribute Template Inheritence MK CKA_CLASS=CKO_SECRET_KEY CKA_KEY_TYPE=CKK_DES2 CKA_UNWRAP=1 CKK_ATTR_MASK= CKA_KEY_TYPE=CKK_DES CKA_SENSITIVE=1 CKA_ENCRYPT=1 CKA_UNWRAP=0 C_UnWrapKey(MK,…) User attribute template CKA_SIGN=1 or CKA_ UNWRAP =1 X K CKA_CLASS=CKO_SECRET_KEY CKA_KEY_TYPE=CKK_DES CKA_SENSITIVE=1 CKA_ENCRYPT=1 CKA_UNWRAP=0 + CKA_SIGN=1 AttrSet ::= Sequence { AttrSet ::= Sequence { AttrType ::= INTEGER AttrValue ::= OCTET STRING } }

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