diff options
Diffstat (limited to 'vendor/github.com/golang-jwt/jwt/ecdsa.go')
| -rw-r--r-- | vendor/github.com/golang-jwt/jwt/ecdsa.go | 18 |
1 files changed, 6 insertions, 12 deletions
diff --git a/vendor/github.com/golang-jwt/jwt/ecdsa.go b/vendor/github.com/golang-jwt/jwt/ecdsa.go index d310af1c7..15e23435d 100644 --- a/vendor/github.com/golang-jwt/jwt/ecdsa.go +++ b/vendor/github.com/golang-jwt/jwt/ecdsa.go @@ -128,18 +128,12 @@ func (m *SigningMethodECDSA) Sign(signingString string, key interface{}) (string keyBytes += 1 } - // We serialize the outpus (r and s) into big-endian byte arrays and pad - // them with zeros on the left to make sure the sizes work out. Both arrays - // must be keyBytes long, and the output must be 2*keyBytes long. - rBytes := r.Bytes() - rBytesPadded := make([]byte, keyBytes) - copy(rBytesPadded[keyBytes-len(rBytes):], rBytes) - - sBytes := s.Bytes() - sBytesPadded := make([]byte, keyBytes) - copy(sBytesPadded[keyBytes-len(sBytes):], sBytes) - - out := append(rBytesPadded, sBytesPadded...) + // We serialize the outputs (r and s) into big-endian byte arrays + // padded with zeros on the left to make sure the sizes work out. + // Output must be 2*keyBytes long. + out := make([]byte, 2*keyBytes) + r.FillBytes(out[0:keyBytes]) // r is assigned to the first half of output. + s.FillBytes(out[keyBytes:]) // s is assigned to the second half of output. return EncodeSegment(out), nil } else { |