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minor envelope reorg

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This commit is contained in:
Greg T. Wallace 2024-03-17 13:45:55 -04:00
parent 02bc7c1239
commit 15c6c6488e
1 changed files with 3 additions and 3 deletions
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6
pkg/pkcs15/encrypted_envelope.go
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@ -120,9 +120,6 @@ func (p15 *pkcs15KeyCert) encryptedKeyEnvelope() ([]byte, error) {
encryptedContent := make([]byte, len(content))
contentEncrypter.CryptBlocks(encryptedContent, content)
// encrypted content MAC
macKey := pbkdf2.Key(cek, []byte("authentication"), 1, 32, sha1.New)
// data encryption alg block
encAlgObj := asn1obj.Sequence([][]byte{
// ContentEncryptionAlgorithmIdentifier
@ -144,6 +141,9 @@ func (p15 *pkcs15KeyCert) encryptedKeyEnvelope() ([]byte, error) {
}),
})
// encrypted content MAC
macKey := pbkdf2.Key(cek, []byte("authentication"), 1, 32, sha1.New)
macHasher := hmac.New(sha256.New, macKey)
// the data the MAC covers is the algId header bytes + encrypted data bytes
hashMe := append(encAlgObj, encryptedContent...)