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helper/kdf: changing argument name for clarity

This commit is contained in:
Armon Dadgar 2015-07-05 14:01:56 -07:00
parent bd347e0430
commit 81f39fbc16
1 changed files with 2 additions and 2 deletions
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4
helper/kdf/kdf.go
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@ -20,7 +20,7 @@ type PRF func([]byte, []byte) ([]byte, error)
// CounterMode implements the counter mode KDF that uses a psuedo-random-function (PRF)
// along with a counter to generate derived keys. The KDF takes a base key
// a derivation context, and the requried number of output bits.
func CounterMode(prf PRF, prfLen uint32, base []byte, context []byte, bits uint32) ([]byte, error) {
func CounterMode(prf PRF, prfLen uint32, key []byte, context []byte, bits uint32) ([]byte, error) {
// Ensure the PRF is byte aligned
if prfLen%8 != 0 {
return nil, fmt.Errorf("PRF must be byte aligned")
@ -50,7 +50,7 @@ func CounterMode(prf PRF, prfLen uint32, base []byte, context []byte, bits uint3
binary.BigEndian.PutUint32(input[:4], i)
// Compute a more key material
part, err := prf(base, input)
part, err := prf(key, input)
if err != nil {
return nil, err
}