Go 实现
package xrsa import ( "encoding/pem" "encoding/base64" "crypto/x509" "crypto/rsa" "crypto/rand" "errors" "crypto" "io" "bytes" "encoding/asn1" ) const ( CHAR_SET = "UTF-8" BASE_64_FORMAT = "UrlSafeNoPadding" RSA_ALGORITHM_KEY_TYPE = "PKCS8" RSA_ALGORITHM_SIGN = crypto.SHA256 ) type XRsa struct { publicKey *rsa.PublicKey privateKey *rsa.PrivateKey } // 生成密钥对 func CreateKeys(publicKeyWriter, privateKeyWriter io.Writer, keyLength int) error { // 生成私钥文件 privateKey, err := rsa.GenerateKey(rand.Reader, keyLength) if err != nil { return err } derStream := MarshalPKCS8PrivateKey(privateKey) block := &pem.Block{ Type: "PRIVATE KEY", Bytes: derStream, } err = pem.Encode(privateKeyWriter, block) if err != nil { return err } // 生成公钥文件 publicKey := &privateKey.PublicKey derPkix, err := x509.MarshalPKIXPublicKey(publicKey) if err != nil { return err } block = &pem.Block{ Type: "PUBLIC KEY", Bytes: derPkix, } err = pem.Encode(publicKeyWriter, block) if err != nil { return err } return nil } func NewXRsa(publicKey []byte, privateKey []byte) (*XRsa, error) { block, _ := pem.Decode(publicKey) if block == nil { return nil, errors.New("public key error") } pubInterface, err := x509.ParsePKIXPublicKey(block.Bytes) if err != nil { return nil, err } pub := pubInterface.(*rsa.PublicKey) block, _ = pem.Decode(privateKey) if block == nil { return nil, errors.New("private key error!") } priv, err := x509.ParsePKCS8PrivateKey(block.Bytes) if err != nil { return nil, err } pri, ok := priv.(*rsa.PrivateKey) if ok { return &XRsa { publicKey: pub, privateKey: pri, }, nil } else { return nil, errors.New("private key not supported") } } // 公钥加密 func (r *XRsa) PublicEncrypt(data string) (string, error) { partLen := r.publicKey.N.BitLen() / 8 - 11 chunks := split([]byte(data), partLen) buffer := bytes.NewBufferString("") for _, chunk := range chunks { bytes, err := rsa.EncryptPKCS1v15(rand.Reader, r.publicKey, chunk) if err != nil { return "", err } buffer.Write(bytes) } return base64.RawURLEncoding.EncodeToString(buffer.Bytes()), nil } // 私钥解密 func (r *XRsa) PrivateDecrypt(encrypted string) (string, error) { partLen := r.publicKey.N.BitLen() / 8 raw, err := base64.RawURLEncoding.DecodeString(encrypted) chunks := split([]byte(raw), partLen) buffer := bytes.NewBufferString("") for _, chunk := range chunks { decrypted, err := rsa.DecryptPKCS1v15(rand.Reader, r.privateKey, chunk) if err != nil { return "", err } buffer.Write(decrypted) } return buffer.String(), err } // 数据加签 func (r *XRsa) Sign(data string) (string, error) { h := RSA_ALGORITHM_SIGN.New() h.Write([]byte(data)) hashed := h.Sum(nil) sign, err := rsa.SignPKCS1v15(rand.Reader, r.privateKey, RSA_ALGORITHM_SIGN, hashed) if err != nil { return "", err } return base64.RawURLEncoding.EncodeToString(sign), err } // 数据验签 func (r *XRsa) Verify(data string, sign string) error { h := RSA_ALGORITHM_SIGN.New() h.Write([]byte(data)) hashed := h.Sum(nil) decodedSign, err := base64.RawURLEncoding.DecodeString(sign) if err != nil { return err } return rsa.VerifyPKCS1v15(r.publicKey, RSA_ALGORITHM_SIGN, hashed, decodedSign) } func MarshalPKCS8PrivateKey(key *rsa.PrivateKey) []byte { info := struct { Version int PrivateKeyAlgorithm []asn1.ObjectIdentifier PrivateKey []byte }{} info.Version = 0 info.PrivateKeyAlgorithm = make([]asn1.ObjectIdentifier, 1) info.PrivateKeyAlgorithm[0] = asn1.ObjectIdentifier{1, 2, 840, 113549, 1, 1, 1} info.PrivateKey = x509.MarshalPKCS1PrivateKey(key) k, _ := asn1.Marshal(info) return k } func split(buf []byte, lim int) [][]byte { var chunk []byte chunks := make([][]byte, 0, len(buf)/lim+1) for len(buf) >= lim { chunk, buf = buf[:lim], buf[lim:] chunks = append(chunks, chunk) } if len(buf) > 0 { chunks = append(chunks, buf[:len(buf)]) } return chunks }
Php实现
if (! function_exists('url_safe_base64_encode')) { function url_safe_base64_encode ($data) { return str_replace(array('+','/', '='),array('-','_', ''), base64_encode($data)); } } if (! function_exists('url_safe_base64_decode')) { function url_safe_base64_decode ($data) { $base_64 = str_replace(array('-','_'),array('+','/'), $data); return base64_decode($base_64); } } class XRsa { const CHAR_SET = "UTF-8"; const BASE_64_FORMAT = "UrlSafeNoPadding"; const RSA_ALGORITHM_KEY_TYPE = OPENSSL_KEYTYPE_RSA; const RSA_ALGORITHM_SIGN = OPENSSL_ALGO_SHA256; protected $public_key; protected $private_key; protected $key_len; public function __construct($pub_key, $pri_key = null) { $this->public_key = $pub_key; $this->private_key = $pri_key; $pub_id = openssl_get_publickey($this->public_key); $this->key_len = openssl_pkey_get_details($pub_id)['bits']; } /* * 创建密钥对 */ public static function createKeys($key_size = 2048) { $config = array( "private_key_bits" => $key_size, "private_key_type" => self::RSA_ALGORITHM_KEY_TYPE, ); $res = openssl_pkey_new($config); openssl_pkey_export($res, $private_key); $public_key_detail = openssl_pkey_get_details($res); $public_key = $public_key_detail["key"]; return [ "public_key" => $public_key, "private_key" => $private_key, ]; } /* * 公钥加密 */ public function publicEncrypt($data) { $encrypted = ''; $part_len = $this->key_len / 8 - 11; $parts = str_split($data, $part_len); foreach ($parts as $part) { $encrypted_temp = ''; openssl_public_encrypt($part, $encrypted_temp, $this->public_key); $encrypted .= $encrypted_temp; } return url_safe_base64_encode($encrypted); } /* * 私钥解密 */ public function privateDecrypt($encrypted) { $decrypted = ""; $part_len = $this->key_len / 8; $base64_decoded = url_safe_base64_decode($encrypted); $parts = str_split($base64_decoded, $part_len); foreach ($parts as $part) { $decrypted_temp = ''; openssl_private_decrypt($part, $decrypted_temp,$this->private_key); $decrypted .= $decrypted_temp; } return $decrypted; } /* * 私钥加密 */ public function privateEncrypt($data) { $encrypted = ''; $part_len = $this->key_len / 8 - 11; $parts = str_split($data, $part_len); foreach ($parts as $part) { $encrypted_temp = ''; openssl_private_encrypt($part, $encrypted_temp, $this->private_key); $encrypted .= $encrypted_temp; } return url_safe_base64_encode($encrypted); } /* * 公钥解密 */ public function publicDecrypt($encrypted) { $decrypted = ""; $part_len = $this->key_len / 8; $base64_decoded = url_safe_base64_decode($encrypted); $parts = str_split($base64_decoded, $part_len); foreach ($parts as $part) { $decrypted_temp = ''; openssl_public_decrypt($part, $decrypted_temp,$this->public_key); $decrypted .= $decrypted_temp; } return $decrypted; } /* * 数据加签 */ public function sign($data) { openssl_sign($data, $sign, $this->private_key, self::RSA_ALGORITHM_SIGN); return url_safe_base64_encode($sign); } /* * 数据签名验证 */ public function verify($data, $sign) { $pub_id = openssl_get_publickey($this->public_key); $res = openssl_verify($data, url_safe_base64_decode($sign), $pub_id, self::RSA_ALGORITHM_SIGN); return $res; } }