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43 lines
946 B
43 lines
946 B
package tls
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import (
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"crypto/sha256"
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"crypto/x509"
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"encoding/base64"
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"encoding/pem"
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)
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func CalculatePEMCertChainSHA256Hash(certContent []byte) string {
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var certChain [][]byte
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for {
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block, remain := pem.Decode(certContent)
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if block == nil {
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break
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}
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certChain = append(certChain, block.Bytes)
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certContent = remain
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}
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certChainHash := GenerateCertChainHash(certChain)
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certChainHashB64 := base64.StdEncoding.EncodeToString(certChainHash)
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return certChainHashB64
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}
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func GenerateCertChainHash(rawCerts [][]byte) []byte {
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var hashValue []byte
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for _, certValue := range rawCerts {
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out := sha256.Sum256(certValue)
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if hashValue == nil {
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hashValue = out[:]
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} else {
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newHashValue := sha256.Sum256(append(hashValue, out[:]...))
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hashValue = newHashValue[:]
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}
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}
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return hashValue
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}
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func GenerateCertPublicKeyHash(cert *x509.Certificate) []byte {
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out := sha256.Sum256(cert.RawSubjectPublicKeyInfo)
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return out[:]
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}
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