基于PHP RSA密文过长加密解密 越过1024的解决方法

　　如下所示：

　　 <?php namespace helpers; class OpensslRSA{ //echo $private_key 私钥; public $private_key = -----BEGIN RSA PRIVATE KEY----- MIICXQIBAAKBgQC+L7ENzBHxKOqjuFHPFKlAt40BatVZhUAHw/G05XshpTGqm9Rv 8wG0EAbFbdo9PuB8DiXdPQLyIfaqkTgpsPjJ1Ow7WKxmYbqZN5IW/GN+TyFWP+MB 2W6IBLPWBDvAl2NJlmU8j3LCPJW1dH4zP1OitkxZMyUuUYYfPuOtO9RJ2wIDAQAB AoGAUFCbmJQBT7JTxGfmRGkZQLdC2MJg7rkS3TSmMhpm8UJtwvqjr9MTeRL7iQxn CU4wRrNC0jcds1sca9N/wDt4FCkCala+bg7mwQuPpg5QhXelfFr88ibRnP8y8LmZ 7PPNqx9c4jivhMzJrzNh3luqg6awjsig2w3+EW1/Ubb30AECQQDshTvyc5mpDgiO 4g8q1ztszszL9eCp+IjlUaN51vC3Nj1eXpjbtdSZ0JVKrDdhKcd3rEZVYzMQN/lI pyq85e/bAkEAzdmN6TF3Y1h3LouumCy6+61ChTFrl/yjw13CGApmAQHhEVyANHr7 NjoxP06eimzn7KHff/eYxd1Emf1SYA8uAQJBAN1ibFUpLRgXAZ20LNw9r+rNutXi ZJLUBlcXTjv6G0ByLYkKZGuqy7/ZhBPsFL4GnCUBBKhh/ObebaA6kH9VfmcCQGfg 0WxMOiM4EWy7sG+6ouE+ncL5HYKlSz7boYbgOHlpqVpJg6j4Jq1G0HNSCU9xhdg0 F8VL/RxcfLH41AkFoAECQQCR8NDB3BgHqyJfarKKMWQ3qrXHaLfBKExMrpQ8MDzs MlSBzFOnucufo110lSgjdRlgr8smtU2hx9gXFIqxvfWF -----END RSA PRIVATE KEY-----; //公钥 public $public_key = -----BEGIN PUBLIC KEY----- MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC+L7ENzBHxKOqjuFHPFKlAt40B atVZhUAHw/G05XshpTGqm9Rv8wG0EAbFbdo9PuB8DiXdPQLyIfaqkTgpsPjJ1Ow7 WKxmYbqZN5IW/GN+TyFWP+MB2W6IBLPWBDvAl2NJlmU8j3LCPJW1dH4zP1OitkxZ MyUuUYYfPuOtO9RJ2wIDAQAB -----END PUBLIC KEY-----; public $pi_key; public $pu_key; //判断公钥和私钥是否可用 public function __construct() { $this->pi_key = openssl_pkey_get_private($this->private_key);//这个函数可用来判断私钥是否是可用的，可用返回资源id Resource id $this->pu_key = openssl_pkey_get_public($this->public_key);//这个函数可用来判断公钥是否是可用的 // print_r($this->pi_key);echo \n; // print_r($this->pu_key);echo \n; } //私钥加密 /*public function PrivateEncrypt($data){ openssl_private_encrypt($data,$encrypted,$this->pi_key); $encrypted = $this->urlsafe_b64encode($encrypted);//加密后的内容通常含有特殊字符，需要编码转换下，在网络间通过url传输时要注意base64编码是否是url安全的 return $encrypted; }*/ public function PrivateEncrypt($data){ // openssl_private_encrypt($data,$encrypted,$this->pi_key); $crypto = ; foreach (str_split($data, 117) as $chunk) { openssl_private_encrypt($chunk, $encryptData, $this->pi_key); $crypto .= $encryptData; } $encrypted = $this->urlsafe_b64encode($crypto);//加密后的内容通常含有特殊字符，需要编码转换下，在网络间通过url传输时要注意base64编码是否是url安全的 return $encrypted; } //加密码时把特殊符号替换成URL可以带的内容 function urlsafe_b64encode($string) { $data = base64_encode($string); $data = str_replace(array(+,/,=),array(-,_,),$data); return $data; } //解密码时把转换后的符号替换特殊符号 function urlsafe_b64decode($string) { $data = str_replace(array(-,_),array(+,/),$string); $mod4 = strlen($data) % 4; if ($mod4) { $data .= substr(====, $mod4); } return base64_decode($data); } //私钥加密的内容通过公钥可用解密出来 public function PublicDecrypt($encrypted){ // $encrypted = $this->urlsafe_b64decode($encrypted); $crypto = ; foreach (str_split($this->urlsafe_b64decode($encrypted), 128) as $chunk) { openssl_public_decrypt($chunk, $decryptData, $this->pu_key); $crypto .= $decryptData; } //openssl_public_decrypt($encrypted,$decrypted,$this->pu_key);//私钥加密的内容通过公钥可用解密出来 return $crypto; } //公钥加密 public function PublicEncrypt($data){ //openssl_public_encrypt($data,$encrypted,$this->pu_key);//公钥加密 $crypto = ; foreach (str_split($data, 117) as $chunk) { openssl_public_encrypt($chunk, $encryptData, $this->pu_key); $crypto .= $encryptData; } $encrypted = $this->urlsafe_b64encode($crypto); return $encrypted; } //私钥解密 public function PrivateDecrypt($encrypted) { $crypto = ; foreach (str_split($this->urlsafe_b64decode($encrypted), 128) as $chunk) { openssl_private_decrypt($chunk, $decryptData, $this->pi_key); $crypto .= $decryptData; } //$encrypted = $this->urlsafe_b64decode($encrypted); //openssl_private_decrypt($encrypted,$decrypted,$this->pi_key); return $crypto; } }

　　不用我多写什么了吧，有问题可以直接联系我。

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