signature := calculateSignatureV2(stringToSign, cred.SecretKey)
	return signature
}

// compareSignatureV2 returns true if and only if both signatures
// are equal. The signatures are expected to be base64 encoded strings
// according to the AWS S3 signature V2 spec.
func compareSignatureV2(sig1, sig2 string) bool {
	// Decode signature string to binary byte-sequence representation is required

		return doesPolicySignatureV2Match(formValues)
	}
	return doesPolicySignatureV4Match(formValues)
}

// compareSignatureV4 returns true if and only if both signatures
// are equal. The signatures are expected to be HEX encoded strings
// according to the AWS S3 signature V4 spec.
func compareSignatureV4(sig1, sig2 string) bool {
	// The CTC using []byte(str) works because the hex encoding

    - name: Cache Gradle Modules
      uses: actions/cache@v4
      with:
        path: |
          ~/.gradle/caches/modules-2/
          ~/.gradle/caches/build-cache-1/
          ~/.gradle/caches/signatures/
          ~/.gradle/caches/keyrings/
        key: ${{ runner.os }}-gradle-cache-${{ hashFiles('gradle/wrapper/gradle-wrapper.properties') }}
        if: ${{ matrix.language == 'java' }}

If you want to play with JWT tokens and see how they work, check <a href="https://jwt.io/" class="external-link" target="_blank">https://jwt.io</a>.

## Install `PyJWT` { #install-pyjwt }

This currently only affects arm64 programs. For all other platforms it is a no-op.

Go 1.24 removed the `x509sha1` setting.  `crypto/x509` no longer supports verifying
signatures on certificates that use SHA-1 based signature algorithms.

Go 1.24 changes the default value of the [`x509usepolicies`
setting.](/pkg/crypto/x509/#CreateCertificate) from `0` to `1`. When marshalling
certificates, policies are now taken from the

func (w *Walker) emitFunc(f *types.Func) {
	sig := f.Signature()
	if sig.Recv() != nil {
		panic("method considered a regular function: " + f.String())
	}
	if w.isDeprecated(f) {
		w.emitf("func %s //deprecated", f.Name())
	}
	w.emitf("func %s%s", f.Name(), w.signatureString(sig))
}

func (w *Walker) emitMethod(m *types.Selection) {
	sig := m.Type().(*types.Signature)
	recv := sig.Recv().Type()

				Modified: time.Date(2011, 12, 8, 10, 6, 8, 0, timeZone(0)),
				Mode:     0444,
			},
		},
	},
	{
		// created by Go, before we wrote the "optional" data
		// descriptor signatures (which are required by macOS).
		// Use obscured file to avoid Apple’s notarization service
		// rejecting the toolchain due to an inability to unzip this archive.
		// See golang.org/issue/34986

}

// signatureErr is a signature returned when an error occurs.
var signatureErr = [4]byte{'e', 'r', 'r', 0}

// getSignature will return a signature that is expected to be the same across all disks.
func (j xlMetaV2Version) getSignature() [4]byte {
	switch j.Type {
	case ObjectType:
		return j.ObjectV2.Signature()
	case DeleteType:
		return j.DeleteMarker.Signature()
	case LegacyType:

			return n, cr.err
		}
	}

	// Now, we read the signature of the following payload and expect:
	//   chunk-signature=" + <signature-as-hex> + "\r\n"
	//
	// The signature is 64 bytes long (hex-encoded SHA256 hash) and
	// starts with a 16 byte header: len("chunk-signature=") + 64 == 80.
	var signature [80]byte
	_, err = io.ReadFull(cr.reader, signature[:])
	if err == io.EOF {
		err = io.ErrUnexpectedEOF
	}

		{
			queryParams: map[string]string{
				"Expires":        "60",
				"Signature":      "badsignature",
				"AWSAccessKeyId": accessKey,
			},
			expected: ErrExpiredPresignRequest,
		},
		// (4) Should error when the signature does not match.
		{
			queryParams: map[string]string{
				"Expires":        fmt.Sprintf("%d", now.Unix()+60),
				"Signature":      "badsignature",
				"AWSAccessKeyId": accessKey,
			},