RSA encryption and decryption (PHP Demo)

1 $private _key=-----BEGIN RSA PRIVATE KEY-----2 Miicxqibaakbgqdpoodvtnsztgyb//p+g/ob36jb3jzwzs2qovojpy/rrtjwlvcq3 PB2M1NZDQNPTFSG8ZBL7UPW3M81LR7NRRN6TY7OM8TBOOSRGY6U0XWBGDRSTFFVW4 Pzz1hehiq6wb8za8cuccyvuqmbrp7hojo4aa9t0rivz/howmesvjnavbmwidaqab5 aogbaoehsaiids6nkdp08r1rsxjhli9i92zawnlkdcybkw4rknfbenszj2oexnkv6 A9vmxonsu1nlcajmrh/85zasds4l+zx8iz18uwxajcppfmd7ng4fd55713lszhua7 dqixk06w2mi0ytwef4cqqmct2/bwchbxzilz9o0q70cf2brpakea/3nthrqnxbf08 Krvrrtw4c9y76pyeesemkuf8zkqu6v1qsb/v3azsigpth+vuf0oamojogx1atruk9 Dae9uq5efqjbaoohcxth7vgm5ujlyjei85jgp2bnhxmnahn6n1q44hs1wbvicujhTen SEAHHVT6HSF7/NXNGOTJXVE0JIT5GLVCX28CQCA1JASKDKG10R9J/RUAK4DIIGP2 One 29egr+zxjfmh2ia71h5mdnchaa1o6za8ivbem4doya4zyzlohdza04wwvfucqqdy A 9+cjvvq6smpyn+e3rrmrwb6iyuf6kkxbxi5gx2uykqga+e/kkis7wqlnbdij7myw - F7MJCVPDMG4PZPA8CPM3AKAFRUXYKLXLUSKBRDZSDCYCUZP/Y3QL/QWXOQCA5BRJ - PJ+COFEWD/JZQD3DRFJDGVCCFMTFEAVMXWXCNJAZU2CW the-----END RSA PRIVATE KEY-----'; -  - $public _key=-----BEGIN Public KEY----- - MIGFMA0GCSQGSIB3DQEBAQUAA4GNADCBIQKBGQDPOODVTNSZTGYB//P+G/OB36JB + 3jzwzs2qovojpy/rrtjwlvcqpb2m1nzdqnptfsg8zbl7upw3m81lr7nrrn6ty7om - 8tboosrgy6u0xwbgdrstffvwpzz1hehiq6wb8za8cuccyvuqmbrp7hojo4aa9t0r + Ivz/howmesvjnavbmwidaqab A-----END Public KEY-----'; at  - //echo $private _key; - $pi _key= Openssl_pkey_get_private ($private _key);//This function can be used to determine if the private key is available, and can be used to return the resource ID Resource ID - $pu _key= Openssl_pkey_get_public ($public _key);//This function can be used to determine if the public key is available - Print_r($pi _key);Echo"\ n"; - Print_r($pu _key);Echo"\ n"; in  -  to $data= "123";//Raw Data + $encrypted= ""; - $decrypted= ""; the  * Echo"Source data:",$data, "\ n"; $ Panax Notoginseng Echo"Private Key encrypt:\n"; -  theOpenssl_private_encrypt ($data,$encrypted,$pi _key);//private key Encryption + $encrypted=Base64_encode($encrypted);//The encrypted content usually contains special characters that need to be encoded for conversion and to be aware that the Base64 encoding is URL-safe when transmitted over a network through a URL. A Echo $encrypted, "\ n"; the  + Echo"Public Key decrypt:\n"; -  $Openssl_public_decrypt (Base64_decode($encrypted),$decrypted,$pu _key);//private key encrypted content can be decrypted by public key $ Echo $decrypted, "\ n"; -  - Echo"---------------------------------------\ n"; the Echo"Public Key encrypt:\n"; - WuyiOpenssl_public_encrypt ($data,$encrypted,$pu _key);//Public Key Cryptography the $encrypted=Base64_encode($encrypted); - Echo $encrypted, "\ n"; Wu  - Echo"Private Key decrypt:\n"; AboutOpenssl_private_decrypt (Base64_decode($encrypted),$decrypted,$pi _key);//private Key Decryption $ Echo $decrypted, "\ n";

The key is generated using the OpenSSL tool, which commands:

1. Generating the RSA private key
OpenSSL genrsa-out Rsaprivatekey.pem 1024
2. Generate the corresponding public key
OpenSSL rsa-in rsaprivatekey.pem-pubout-out Rsapublickey.pem
3. Convert the RSA private key to PKCS8 format,
OpenSSL pkcs8-topk8-inform pem-in rsaprivatekey.pem-outform pem-nocrypt-out
Rsaprivatepkcs8.pem

RSA encryption and decryption (PHP Demo)