如何在PHP中创建SHA256withRSA?
例如: https://developers.google.com/identity/protocols/OAuth2ServiceAccount
{"alg":"RS256","typ":"JWT"}.
{
"iss":"761326798069-r5mljlln1rd4lrbhg75efgigp36m78j5@developer.gserviceaccount.com",
"scope":"https://www.googleapis.com/auth/prediction",
"aud":"https://www.googleapis.com/oauth2/v4/token",
"exp":1328554385,
"iat":1328550785
}.
[signature bytes]
以下是已签名并准备好传输的JWT示例:
eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiI3NjEzMjY3OTgwNjktcjVtbGpsbG4xcmQ0bHJiaGc3NWVmZ2lncDM2bTc4ajVAZGV2ZWxvcGVyLmdzZXJ2aWNlYWNjb3VudC5jb20iLCJzY29wZSI6Imh0dHBzOi8vd3d3Lmdvb2dsZWFwaXMuY29tL2F1dGgvcHJlZGljdGlvbiIsImF1ZCI6Imh0dHBzOi8vd3d3Lmdvb2dsZWFwaXMuY29tL29hdXRoMi92NC90b2tlbiIsImV4cCI6MTMyODU1NDM4NSwiaWF0IjoxMzI4NTUwNzg1fQ.UFUt59SUM2_AW4cRU8Y0BYVQsNTo4n7AFsNrqOpYiICDu37vVt-tw38UKzjmUKtcRsLLjrR3gFW3dNDMx_pL9DVjgVHDdYirtrCekUHOYoa1CMR66nxep5q5cBQ4y4u2kIgSvChCTc9pmLLNoIem-ruCecAJYgI9Ks7pTnW1gkOKs0x3YpiLpzplVHAkkHztaXiJdtpBcY1OXyo6jTQCa3Lk2Q3va1dPkh_d--GU2M5flgd8xNBPYw4vxyt0mP59XZlHMpztZt0soSgObf7G3GXArreF_6tpbFsS3z2t5zkEiHuWJXpzcYr5zWTRPDEHsejeBSG8EgpLDce2380ROQ
如何查看[签名字节]?如何在PHP中创建SHA256withRSA?:
使用SHA256withRSA签署输入的UTF-8表示(也是 称为带有SHA-256哈希函数的RSASSA-PKCS1-V1_5-SIGN)
答案 0 :(得分:1)
You can use the PHP function openssl_sign():
//helper function
function base64url_encode($data) {
return rtrim(strtr(base64_encode($data), '+/', '-_'), '=');
}
//Google's Documentation of Creating a JWT: https://developers.google.com/identity/protocols/OAuth2ServiceAccount#authorizingrequests
//{Base64url encoded JSON header}
$jwtHeader = base64url_encode(json_encode(array(
"alg" => "RS256",
"typ" => "JWT"
)));
//{Base64url encoded JSON claim set}
$now = time();
$jwtClaim = base64url_encode(json_encode(array(
"iss" => "761326798069-r5mljlln1rd4lrbhg75efgigp36m78j5@developer.gserviceaccount.com",
"scope" => "https://www.googleapis.com/auth/prediction",
"aud" => "https://www.googleapis.com/oauth2/v4/token",
"exp" => $now + 3600,
"iat" => $now
)));
//The base string for the signature: {Base64url encoded JSON header}.{Base64url encoded JSON claim set}
openssl_sign(
$jwtHeader.".".$jwtClaim,
$jwtSig,
$your_private_key_from_google_api_console,
"sha256WithRSAEncryption"
);
$jwtSign = base64url_encode($jwtSig);
//{Base64url encoded JSON header}.{Base64url encoded JSON claim set}.{Base64url encoded signature}
$jwtAssertion = $jwtHeader.".".$jwtClaim.".".$jwtSig;
答案 1 :(得分:0)
有一些小的更正。
$ jwtAssertion = $ jwtHeader。“。”。$ jwtClaim。“。”。$ jwtSig;
应该是
$ jwtAssertion = $ jwtHeader。“。”。$ jwtClaim。“。”。$ jwtSign;