2308e2f8be
* updates go-jose to new updated repo due to migration - updated from /square/go-jose to /go-jose/go-jose - updates to v2.6.3 - addresses CVE-2016-9123 and CVE-2016-9121 - fixes tests that were adjusting for a 1s delay * revert 299>300 in op_test.go
41 lines
897 B
Go
41 lines
897 B
Go
package crypto
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import (
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"crypto/sha256"
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"crypto/sha512"
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"encoding/base64"
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"errors"
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"fmt"
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"hash"
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"gopkg.in/go-jose/go-jose.v2"
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)
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var ErrUnsupportedAlgorithm = errors.New("unsupported signing algorithm")
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func GetHashAlgorithm(sigAlgorithm jose.SignatureAlgorithm) (hash.Hash, error) {
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switch sigAlgorithm {
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case jose.RS256, jose.ES256, jose.PS256:
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return sha256.New(), nil
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case jose.RS384, jose.ES384, jose.PS384:
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return sha512.New384(), nil
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case jose.RS512, jose.ES512, jose.PS512:
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return sha512.New(), nil
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default:
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return nil, fmt.Errorf("%w: %q", ErrUnsupportedAlgorithm, sigAlgorithm)
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}
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}
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func HashString(hash hash.Hash, s string, firstHalf bool) string {
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if hash == nil {
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return s
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}
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//nolint:errcheck
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hash.Write([]byte(s))
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size := hash.Size()
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if firstHalf {
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size = size / 2
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}
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sum := hash.Sum(nil)[:size]
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return base64.RawURLEncoding.EncodeToString(sum)
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}
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