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crypto: update {Load,Save}ECDSA comments to mention hex encoding

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This commit is contained in:
Felix Lange 2015-04-19 01:33:00 +02:00
parent da4a0e0555
commit 4907d28967
1 changed files with 3 additions and 2 deletions
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5
crypto/crypto.go
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@ -120,6 +120,7 @@ func HexToECDSA(hexkey string) (*ecdsa.PrivateKey, error) {
} }
// LoadECDSA loads a secp256k1 private key from the given file. // LoadECDSA loads a secp256k1 private key from the given file.
// The key data is expected to be hex-encoded.
func LoadECDSA(file string) (*ecdsa.PrivateKey, error) { func LoadECDSA(file string) (*ecdsa.PrivateKey, error) {
buf := make([]byte, 64) buf := make([]byte, 64)
fd, err := os.Open(file) fd, err := os.Open(file)
@ -139,8 +140,8 @@ func LoadECDSA(file string) (*ecdsa.PrivateKey, error) {
return ToECDSA(key), nil return ToECDSA(key), nil
} }
// SaveECDSA saves a secp256k1 private key to the given file with restrictive // SaveECDSA saves a secp256k1 private key to the given file with
// permissions // restrictive permissions. The key data is saved hex-encoded.
func SaveECDSA(file string, key *ecdsa.PrivateKey) error { func SaveECDSA(file string, key *ecdsa.PrivateKey) error {
k := hex.EncodeToString(FromECDSA(key)) k := hex.EncodeToString(FromECDSA(key))
return ioutil.WriteFile(file, []byte(k), 0600) return ioutil.WriteFile(file, []byte(k), 0600)