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authorGustav Simonsson <gustav.simonsson@gmail.com>2015-01-16 02:58:38 +0800
committerGustav Simonsson <gustav.simonsson@gmail.com>2015-01-16 02:58:38 +0800
commit9caf32befebb41fbb013b299caf2fff5fe840430 (patch)
tree0dbdccc3d86832b5d7225c741228fe574d3b11bb /crypto/key_store_passphrase.go
parent47d3b3dd58172c2e7c1f72fb072bd9385aff8205 (diff)
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Update code comments
Diffstat (limited to 'crypto/key_store_passphrase.go')
-rw-r--r--crypto/key_store_passphrase.go10
1 files changed, 4 insertions, 6 deletions
diff --git a/crypto/key_store_passphrase.go b/crypto/key_store_passphrase.go
index 1e7c50f96..c7f740ae3 100644
--- a/crypto/key_store_passphrase.go
+++ b/crypto/key_store_passphrase.go
@@ -22,9 +22,8 @@
*/
/*
-This key store behaves as KeyStorePlaintextFile with the difference that
-the private key is encrypted and encoded as a JSON object within the
-key JSON object.
+This key store behaves as KeyStorePlain with the difference that
+the private key is encrypted and on disk uses another JSON encoding.
Cryptography:
@@ -39,9 +38,9 @@ Cryptography:
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.
-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].
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
@@ -205,7 +204,6 @@ func DecryptKey(ks keyStorePassphrase, keyId *uuid.UUID, auth string) (keyBytes
return keyBytes, err
}
-// plain crypto/rand. this is /dev/urandom on Unix-like systems.
func getEntropyCSPRNG(n int) []byte {
mainBuff := make([]byte, n)
_, err := io.ReadFull(crand.Reader, mainBuff)