435c0d9fc8
This PR switches the Nomad repository from using govendor to Go modules for managing dependencies. Aspects of the Nomad workflow remain pretty much the same. The usual Makefile targets should continue to work as they always did. The API submodule simply defers to the parent Nomad version on the repository, keeping the semantics of API versioning that currently exists.
44 lines
997 B
Go
44 lines
997 B
Go
package dns
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import (
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"crypto/sha256"
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"crypto/sha512"
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"crypto/x509"
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"encoding/hex"
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"errors"
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)
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// CertificateToDANE converts a certificate to a hex string as used in the TLSA or SMIMEA records.
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func CertificateToDANE(selector, matchingType uint8, cert *x509.Certificate) (string, error) {
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switch matchingType {
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case 0:
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switch selector {
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case 0:
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return hex.EncodeToString(cert.Raw), nil
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case 1:
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return hex.EncodeToString(cert.RawSubjectPublicKeyInfo), nil
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}
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case 1:
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h := sha256.New()
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switch selector {
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case 0:
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h.Write(cert.Raw)
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return hex.EncodeToString(h.Sum(nil)), nil
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case 1:
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h.Write(cert.RawSubjectPublicKeyInfo)
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return hex.EncodeToString(h.Sum(nil)), nil
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}
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case 2:
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h := sha512.New()
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switch selector {
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case 0:
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h.Write(cert.Raw)
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return hex.EncodeToString(h.Sum(nil)), nil
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case 1:
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h.Write(cert.RawSubjectPublicKeyInfo)
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return hex.EncodeToString(h.Sum(nil)), nil
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}
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}
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return "", errors.New("dns: bad MatchingType or Selector")
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}
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