Global Variable

kSecDigestHMACKeyAttribute

The key for HMAC operation.

Declaration

let kSecDigestHMACKeyAttribute: CFString

Discussion

The value is a CFData object that specifies the key when kSecDigestTypeAttribute attribute is set to one of the HMAC options listed in Digest Types. If this value is not set, the transform will assume a zero length key.

See Also

Digest and Encryption Keys

let kSecInputIsAttributeName: CFString

The type of input to the transform.

let kSecEncryptKey: CFString

The encryption key for the transform.

let kSecIVKey: CFString

The setting for an initialization vector.

let kSecPaddingKey: CFString

The kind of padding to use.