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RSA: add support for saving to PKCS8 (unencrypted)

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This commit is contained in:
terrafrost 2014-06-12 22:03:00 -05:00
parent 90bc07e292
commit 0a5e26a648
1 changed files with 19 additions and 1 deletions
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20
phpseclib/Crypt/RSA.php
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@ -191,6 +191,10 @@ define('CRYPT_RSA_PRIVATE_FORMAT_PUTTY', 1);
* XML formatted private key
*/
define('CRYPT_RSA_PRIVATE_FORMAT_XML', 2);
/**
* PKCS#8 formatted private key
*/
define('CRYPT_RSA_PRIVATE_FORMAT_PKCS8', 3);
/**#@-*/
/**#@+
@ -846,6 +850,17 @@ class Crypt_RSA
$RSAPrivateKey = pack('Ca*a*', CRYPT_RSA_ASN1_SEQUENCE, $this->_encodeLength(strlen($RSAPrivateKey)), $RSAPrivateKey);
if ($this->privateKeyFormat == CRYPT_RSA_PRIVATE_FORMAT_PKCS8) {
$rsaOID = pack('H*', '300d06092a864886f70d0101010500'); // hex version of MA0GCSqGSIb3DQEBAQUA
$RSAPrivateKey = pack('Ca*a*Ca*a*',
CRYPT_RSA_ASN1_INTEGER, "\01\00", $rsaOID, 4, $this->_encodeLength(strlen($RSAPrivateKey)), $RSAPrivateKey);
$RSAPrivateKey = pack('Ca*a*', CRYPT_RSA_ASN1_SEQUENCE, $this->_encodeLength(strlen($RSAPrivateKey)), $RSAPrivateKey);
$RSAPrivateKey = "-----BEGIN PRIVATE KEY-----\r\n" .
chunk_split(base64_encode($RSAPrivateKey), 64) .
'-----END PRIVATE KEY-----';
return $RSAPrivateKey;
}
if (!empty($this->password) || is_string($this->password)) {
$iv = crypt_random_string(8);
$symkey = pack('H*', md5($this->password . $iv)); // symkey is short for symmetric key
@ -993,6 +1008,7 @@ class Crypt_RSA
}
return isset($components['modulus']) && isset($components['publicExponent']) ? $components : false;
case CRYPT_RSA_PRIVATE_FORMAT_PKCS1:
case CRYPT_RSA_PRIVATE_FORMAT_PKCS8:
case CRYPT_RSA_PUBLIC_FORMAT_PKCS1:
/* Although PKCS#1 proposes a format that public and private keys can use, encrypting them is
"outside the scope" of PKCS#1. PKCS#1 then refers you to PKCS#12 and PKCS#15 if you're wanting to
@ -1083,7 +1099,9 @@ class Crypt_RSA
7:d=1 hl=2 l= 13 cons: SEQUENCE
9:d=2 hl=2 l= 9 prim: OBJECT :rsaEncryption
20:d=2 hl=2 l= 0 prim: NULL
22:d=1 hl=4 l= 609 prim: OCTET STRING */
22:d=1 hl=4 l= 609 prim: OCTET STRING
ie. PKCS8 keys*/
if ($tag == CRYPT_RSA_ASN1_INTEGER && substr($key, 0, 3) == "\x01\x00\x30") {
$this->_string_shift($key, 3);