tornadocontrib/go-ethereum
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This commit is contained in:
Gustav Simonsson 2015-01-15 19:58:38 +01:00
parent 47d3b3dd58
commit 9caf32befe
1 changed files with 4 additions and 6 deletions
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10
crypto/key_store_passphrase.go
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@ -22,9 +22,8 @@
*/ */
/* /*
This key store behaves as KeyStorePlaintextFile with the difference that This key store behaves as KeyStorePlain with the difference that
the private key is encrypted and encoded as a JSON object within the the private key is encrypted and on disk uses another JSON encoding.
key JSON object.
Cryptography: Cryptography:
@ -39,9 +38,9 @@ Cryptography:
Encoding: Encoding:
1. On disk, ciphertext, salt and IV are encoded as a JSON object. 1. On disk, ciphertext, salt and IV are encoded in a nested JSON object.
cat a key file to see the structure. cat a key file to see the structure.
2. byte arrays are ASCII HEX encoded as JSON strings. 2. byte arrays are base64 JSON strings.
3. The EC private key bytes are in uncompressed form [7]. 3. The EC private key bytes are in uncompressed form [7].
They are a big-endian byte slice of the absolute value of D [8][9]. They are a big-endian byte slice of the absolute value of D [8][9].
4. The checksum is the last 32 bytes of the plaintext byte array and the 4. The checksum is the last 32 bytes of the plaintext byte array and the
@ -205,7 +204,6 @@ func DecryptKey(ks keyStorePassphrase, keyId *uuid.UUID, auth string) (keyBytes
return keyBytes, err return keyBytes, err
} }
// plain crypto/rand. this is /dev/urandom on Unix-like systems.
func getEntropyCSPRNG(n int) []byte { func getEntropyCSPRNG(n int) []byte {
mainBuff := make([]byte, n) mainBuff := make([]byte, n)
_, err := io.ReadFull(crand.Reader, mainBuff) _, err := io.ReadFull(crand.Reader, mainBuff)