var golang.org/x/crypto/openpgp.SignatureType

3 uses

	golang.org/x/crypto/openpgp (current package)
		read.go#L21: var SignatureType = "PGP SIGNATURE"
		read.go#L436: 	body, err := readArmored(signature, SignatureType)
		write.go#L51: 	out, err := armor.Encode(w, SignatureType, nil)

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