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2025-11-28 14:28:58 +08:00
commit 6ef96e6370
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+<?php
+/*
+* File：RSA通用加解密
+* Author：易如意
+* QQ：51154393
+* url：www.eruyi.cn
+** 注意：请勿使用记事本修改，保存时必须保证以《 UTF8 无 BOM 格式编码》，否则会影响返回的数据
+*/
+class Rsa{
+
+    /**
+     * 签名算法，SHA256WithRSA
+     */
+	 
+    const SIGNATURE_ALGORITHM = OPENSSL_ALGO_SHA256;
+
+    /**
+     * RSA最大加密明文大小
+     */
+    const MAX_ENCRYPT_BLOCK = 117;
+
+    /**
+     * RSA最大解密密文大小
+     */
+    const MAX_DECRYPT_BLOCK = 128;
+
+    /**
+     * 使用公钥将数据加密
+     * @param $data string 需要加密的数据
+     * @param $publicKey string 公钥
+     * @return string 返回加密串(base64编码)
+     */
+    public static function publicEncrypt($data,$publicKey){
+        $data = str_split($data, self::MAX_ENCRYPT_BLOCK);
+
+        $encrypted = '';
+        foreach($data as & $chunk){
+            if(!openssl_public_encrypt($chunk, $encryptData, "-----BEGIN PUBLIC KEY-----\n".$publicKey."\n-----END PUBLIC KEY-----")){
+                return '';
+            }else{
+                $encrypted .= $encryptData;
+            }
+        }
+        return self::urlSafeBase64encode($encrypted);
+    }
+
+    /**
+     * 使用私钥解密
+     * @param $data string 需要解密的数据
+     * @param $privateKey string 私钥
+     * @return string 返回解密串
+     */
+    public static function privateDecrypt($data,$privateKey){
+        $data = str_split(self::urlSafeBase64decode($data), self::MAX_DECRYPT_BLOCK);
+
+        $decrypted = '';
+        foreach($data as & $chunk){
+            if(!openssl_private_decrypt($chunk, $decryptData, "-----BEGIN RSA PRIVATE KEY-----\n".$privateKey."\n-----END RSA PRIVATE KEY-----")){
+                return '';
+            }else{
+                $decrypted .= $decryptData;
+            }
+        }
+        return $decrypted;
+    }
+
+    /**
+     * 使用私钥将数据加密
+     * @param $data string 需要加密的数据
+     * @param $privateKey string 私钥
+     * @return string 返回加密串(base64编码)
+     */
+    public static function privateEncrypt($data,$privateKey){
+        $data = str_split($data, self::MAX_ENCRYPT_BLOCK);
+
+        $encrypted = '';
+        foreach($data as & $chunk){
+            if(!openssl_private_encrypt($chunk, $encryptData, "-----BEGIN RSA PRIVATE KEY-----\n".$privateKey."\n-----END RSA PRIVATE KEY-----")){
+                return '';
+            }else{
+                $encrypted .= $encryptData;
+            }
+        }
+        return self::urlSafeBase64encode($encrypted);
+    }
+
+
+    /**
+     * 使用公钥解密
+     * @param $data string 需要解密的数据
+     * @param $publicKey string 公钥
+     * @return string 返回解密串
+     */
+    public static function publicDecrypt($data,$publicKey){
+        $data = str_split(self::urlSafeBase64decode($data), self::MAX_DECRYPT_BLOCK);
+
+        $decrypted = '';
+        foreach($data as & $chunk){
+            if(!openssl_public_decrypt($chunk, $decryptData, "-----BEGIN PUBLIC KEY-----\n".$publicKey."\n-----END PUBLIC KEY-----")){
+                return '';
+            }else{
+                $decrypted .= $decryptData;
+            }
+        }
+        return $decrypted;
+    }
+
+
+    /**
+     * 私钥加签名
+     * @param $data 被加签数据
+     * @param $privateKey 私钥
+     * @return mixed|string
+     */
+    public static function rsaSign($data, $privateKey){
+        if(openssl_sign($data, $sign, "-----BEGIN RSA PRIVATE KEY-----\n".$privateKey."\n-----END RSA PRIVATE KEY-----", self::SIGNATURE_ALGORITHM)){
+            return self::urlSafeBase64encode($sign);
+        }
+        return '';
+    }
+
+    /**
+     * 公钥验签
+     * @param $data 被加签数据
+     * @param $sign 签名
+     * @param $publicKey 公钥
+     * @return bool
+     */
+    public static function verifySign($data, $sign, $publicKey){
+        return (1 == openssl_verify($data, self::urlSafeBase64decode($sign), "-----BEGIN PUBLIC KEY-----\n".$publicKey."\n-----END PUBLIC KEY-----", self::SIGNATURE_ALGORITHM));
+    }
+
+    /**
+     * url base64编码
+     * @param $string
+     * @return mixed|string
+     */
+    public static function urlSafeBase64encode($string,$replace = false){
+		if($replace){
+			$data = str_replace(array('+','/','='), array( '-','_',''), base64_encode($string));
+		}else{
+			$data = base64_encode($string);
+		}
+        return $data;
+    }
+
+    /**
+     * url base64解码
+     * @param $string
+     * @return bool|string
+     */
+    public static function urlSafeBase64decode($string,$replace = false){
+		if($replace){
+			$data = str_replace(array('-','_'), array('+','/'), $string);
+			$mod4 = strlen($data) % 4;
+			if($mod4){
+				$data .= substr('====', $mod4);
+			}
+		}else{
+			$data = $string;
+		}
+        return base64_decode($data);
+    }
+}
+
+
+?>