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7d75d61621
Manta is an Object Storage by [Joyent](https://www.joyent.com/) This PR adds initial support for Manta. It is intended as non-production ready so that feedback can be obtained.
30 lines
797 B
Go
30 lines
797 B
Go
package authentication
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import (
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"crypto/md5"
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"fmt"
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"strings"
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"golang.org/x/crypto/ssh"
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)
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// formatPublicKeyFingerprint produces the MD5 fingerprint of the given SSH
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// public key. If display is true, the fingerprint is formatted with colons
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// between each byte, as per the output of OpenSSL.
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func formatPublicKeyFingerprint(key ssh.PublicKey, display bool) string {
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publicKeyFingerprint := md5.New()
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publicKeyFingerprint.Write(key.Marshal())
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publicKeyFingerprintString := fmt.Sprintf("%x", publicKeyFingerprint.Sum(nil))
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if !display {
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return publicKeyFingerprintString
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}
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formatted := ""
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for i := 0; i < len(publicKeyFingerprintString); i = i + 2 {
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formatted = fmt.Sprintf("%s%s:", formatted, publicKeyFingerprintString[i:i+2])
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}
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return strings.TrimSuffix(formatted, ":")
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}
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