{"id":108,"date":"2019-10-07T16:00:01","date_gmt":"2019-10-07T08:00:01","guid":{"rendered":"https:\/\/chenqing.blog\/?p=108"},"modified":"2019-10-07T16:00:50","modified_gmt":"2019-10-07T08:00:50","slug":"jws-%e8%a7%a3%e6%9e%90","status":"publish","type":"post","link":"https:\/\/www.chenqing.work\/?p=108","title":{"rendered":"JWS \u89e3\u6790"},"content":{"rendered":"\n

\u53c2\u8003\u6587\u6863 rfc7515<\/a><\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

JWS \u4e5f\u5c31\u662f Json Web Signature\uff0c\u662f\u6784\u9020 JWT \u7684\u57fa\u7840\u7ed3\u6784\uff08JWT \u5176\u5b9e\u6db5\u76d6\u4e86 JWS \u548c JWE \u4e24\u7c7b\uff0c\u5176\u4e2d JWT \u7684\u8f7d\u8377\u8fd8\u53ef\u4ee5\u662f\u5d4c\u5957\u7684 JWT\uff09\uff0c\u5305\u62ec\u4e09\u90e8\u5206 JOSE Header\u3001JWS Payload\u3001JWS Signature\u3002<\/p>\n\n\n\n

\u8fd9\u91cc\u7684 Signature \u53ef\u4ee5\u6709\u4e24\u79cd\u751f\u6210\u65b9\u5f0f\uff0c\u4e00\u79cd\u662f\u6807\u51c6\u7684\u7b7e\u540d\uff0c\u4f7f\u7528\u975e\u5bf9\u79f0\u52a0\u5bc6\uff0c\u56e0\u4e3a\u79c1\u94a5\u7684\u4fdd\u5bc6\u6027\uff0c\u80fd\u591f\u786e\u8ba4\u7b7e\u540d\u7684\u4e3b\u4f53\uff0c\u540c\u65f6\u80fd\u4fdd\u62a4\u5b8c\u6574\u6027\uff1b\u53e6\u4e00\u79cd\u662f\u6d88\u606f\u8ba4\u8bc1\u7801 MAC\uff08Message Authentication Code\uff09\uff0c\u4f7f\u7528\u5bf9\u79f0\u79d8\u94a5\uff0c\u8be5\u79d8\u94a5\u9700\u8981\u5728\u7b7e\u53d1\u3001\u9a8c\u8bc1\u7684\u591a\u4e2a\u4e3b\u4f53\u95f4\u5171\u4eab\uff0c\u56e0\u6b64\u65e0\u6cd5\u786e\u8ba4\u7b7e\u53d1\u7684\u4e3b\u4f53\uff0c\u53ea\u80fd\u8d77\u5230\u4fdd\u62a4\u5b8c\u6574\u6027\u7684\u4f5c\u7528\u3002<\/p>\n\n\n\n

JWS \u6700\u7ec8\u6709\u4e24\u79cd\u5e8f\u5217\u5316\u7684\u8868\u73b0\u5f62\u5f0f\uff0c\u4e00\u79cd\u662f JWS Compact Serialization\uff0c\u4e3a\u4e00\u4e32\u5b57\u7b26\uff1b\u53e6\u4e00\u79cd\u662f JWS JSON Serialization\uff0c\u662f\u4e00\u4e2a\u6807\u51c6\u7684 Json \u5bf9\u8c61\uff0c\u5141\u8bb8\u4e3a\u540c\u6837\u7684\u5185\u5bb9\u751f\u6210\u591a\u4e2a\u7b7e\u540d\/\u6d88\u606f\u8ba4\u8bc1\u7801\u3002
\n<\/p>\n\n\n\n

JWS Compact Serialization\uff0c\u5404\u90e8\u5206\u4ee5 ‘.’ \u5206\u9694\u3002<\/p>\n\n\n\n

BASE64URL(UTF8(JWS Protected Header)) || \u2019.\u2019 ||
\n BASE64URL(JWS Payload) || \u2019.\u2019 ||
\n BASE64URL(JWS Signature)<\/p><\/blockquote>\n\n\n\n

JWS Json Serialization \u8fd8\u53ef\u4ee5\u5206\u4e3a\u4e24\u79cd\u5b50\u683c\u5f0f\uff1a\u901a\u7528\u3001\u6241\u5e73\u3002<\/p>\n\n\n\n

\u901a\u7528\u683c\u5f0f\uff0c\u6700\u5916\u5c42\u4e3a payload\u3001signatures\u3002signatures \u4e2d\u53ef\u4ee5\u5305\u542b\u591a\u4e2a json \u5bf9\u8c61\uff0c\u5185\u5c42\u7684 json \u5bf9\u8c61\u7531 protected\u3001header\u3001signature \u7ec4\u6210\u3002\u4e0d\u540c\u7684 protected header \u751f\u6210\u4e0d\u540c\u7684 Signature\u3002<\/p>\n\n\n\n

{\n    \"payload\": \"<payload contents>\",\n    \"signatures\": \n    [\n        {\n            \"protected\": \"<integrity-protected header 1 contents>\",\n            \"header\": \"<non-integrity-protected header 1 contents>\",\n            \"signature\": \"<signature 1 contents>\"\n        },\n        ...\n        {\n            \"protected\": \"<integrity-protected header N contents>\",\n            \"header\": \"<non-integrity-protected header 1 contents>\",\n            \"signature\": \"<signature N contents>\"\n        }\n    ]\n}<\/code><\/pre>\n\n\n\n
\u6241\u5e73\u683c\u5f0f\uff0c\u5c31\u662f\u4e3a\u53ea\u6709\u4e00\u4e2a signature\/mac \u51c6\u5907\u7684\u3002<\/p>\n\n\n\n
{\n    \"payload\": \"<payload contents>\",\n    \"protected\": \"<integrity-protected header contents>\",\n    \"header\": \"<non-integrity-protected header contents>\",\n    \"signature\": \"<signature contents>\"\n}<\/code><\/pre>\n\n\n\n
JOSE Header\uff1aJson Object Signing and Encryption Header\u3002\u63cf\u8ff0\u52a0\u5bc6\u884c\u4e3a\u53ca\u5176\u4ed6\u7528\u5230\u7684\u53c2\u6570\uff0c\u662f JWS Protected\/Unprotected Header \u7684\u5408\u96c6\u3002<\/p>\n\n\n\n
JWS Protected Header\uff0c\u6709\u5b8c\u6574\u6027\u4fdd\u62a4\u7684\u5934\u53c2\u6570\u3002<\/p>\n\n\n\n
JWS Unprotected Header\uff0c\u65e0\u5b8c\u6574\u6027\u4fdd\u62a4\u5934\u53c2\u6570\uff0c\u4ec5\u51fa\u73b0\u5728 JWS Json Serialization \u683c\u5f0f\u4e2d\u3002<\/p>\n\n\n\n
\u4ee5\u4e0b\u5217\u51fa\u4e86 JOSE Header \u4e2d\u7684\u89c4\u5b9a\u53c2\u6570\uff0c\u5404\u53c2\u6570\u8be6\u7ec6\u4fe1\u606f\u8bf7\u53c2\u8003 rfc7515<\/p>\n\n\n\n
\u5934\u53c2\u6570<\/th>\u5168\u79f0<\/th>\u89e3\u91ca<\/th>\u5fc5\u9009<\/th><\/tr><\/thead>
alg<\/td>algorithm<\/td>\u6307\u5b9a\u7b7e\u540d\u7b97\u6cd5\uff0c\u4e3a none \u65f6\uff0c\u8868\u793a\u4e0d\u4f7f\u7528\u7b7e\u540d\u6765\u4fdd\u62a4\u5b8c\u6574\u6027<\/td>\u662f<\/td><\/tr>
jku<\/td>JWK set URL<\/td>\u7b7e\u540d\u6240\u7528 key \u5bf9\u5e94\u516c\u5319\u6240\u5728\u7684 URI<\/td>\u5426<\/td><\/tr>
jwk<\/td>json web key<\/td>\u7b7e\u540d\u6240\u7528 key \u5bf9\u5e94\u7684\u516c\u5319<\/td>\u5426<\/td><\/tr>
kid<\/td>key id<\/td>\u7b7e\u540d\u6240\u7528 key \u7684 id<\/td>\u5426<\/td><\/tr>
typ<\/td>Type<\/td>\u6307\u660e\u6574\u4e2a jws \u7684\u5a92\u4f53\u7c7b\u578b\uff0cJOSE \u610f\u5473\u7740\u4e3acompact\uff0cJOSE+JSON\u610f\u5473\u7740\u4e3ajson<\/td>\u5426<\/td><\/tr>
cty<\/td>Content Type<\/td>\u8f7d\u8377\u7684\u5a92\u4f53\u7c7b\u578b<\/td>\u5426<\/td><\/tr>
crit<\/td>Critical<\/td>\u6b64\u5b57\u6bb5\u5217\u51fa\u7684\u6269\u5c55\u5934\u53c2\u6570\u5fc5\u987b\u88ab\u63a5\u6536\u8005\u7406\u89e3\u5e76\u5904\u7406\uff0c\u5426\u5219\u8be5 jws \u65e0\u6548\uff0c\u8be5\u5b57\u6bb5\u4e3a\u6570\u7ec4\u683c\u5f0f<\/td>\u5426<\/td><\/tr>
x5u<\/td>X.509 URL<\/td>—<\/td>\u5426<\/td><\/tr>
x5c<\/td>X.509 Certificate Chain<\/td>—<\/td>\u5426<\/td><\/tr>
x5t<\/td>X.509 Certificate SHA-1 Thumbprint<\/td>—<\/td>\u5426<\/td><\/tr>
x5t#S256<\/td>X.509 Certificate SHA-256 Thumbprint<\/td>—<\/td>\u5426<\/td><\/tr><\/tbody><\/table>\n\n\n\n
# crit \u53c2\u6570\u4f8b\u5b50\n{\n    \"alg\":\"ES256\",\n    \"crit\":[\"exp\",\"iss\"],\n    \"exp\":1363284000,\n    \"iss\":\"test\"\n}<\/code><\/pre>\n\n\n\n
\u4ee5\u4e0b\u4e3a rfc7515 \u4e2d\u63d0\u4f9b\u7684\u4e00\u4e2a\u6848\u4f8b\uff0c\u4f7f\u7528 HMAC_SHA256 \u751f\u6210 JWS Signature\u3002<\/p>\n\n\n\n
1. \u5934\u90e8\u5c31\u662f\u4e00\u4e2a\u7d27\u51d1\u7684\u5b57\u7b26\u4e32\uff0c\u4e0d\u6362\u884c\uff0c\u4e5f\u65e0\u7a7a\u683c\u3002<\/strong><\/p>\n\n\n\n
Header = {“typ”:”JWT”,”alg”:”HS256″}<\/p>
base64url(Header) = eyJ0eXAiOiJKV1QiLA0KICJhbGciOiJIUzI1NiJ9<\/p><\/blockquote>\n\n\n\n
import base64\nheader_encoded = base64.urlsafe_b64encode(b'{\"typ\":\"JWT\",\"alg\":\"HS256\"}')\nprint(header_encoded)<\/code><\/pre>\n\n\n\n
2. \u8f7d\u8377\u662f\u4e00\u4e2a\u5305\u62ec\u4e86\u6362\u884c\u548c\u7a7a\u683c\u7684 json \u5bf9\u8c61\uff0c\u6362\u884c\u53d6 win \u7cfb\u7edf\u7684 CRLF\uff0c\u4e14\u9664\u7b2c\u4e00\u884c\u5916\uff0c\u6bcf\u4e00\u884c\u5f00\u5934\u6709\u4e00\u4e2a\u7a7a\u683c\uff0c\u884c\u5c3e\u65e0\u7a7a\u683c\u3002<\/strong><\/p>\n\n\n\n
\"\"<\/figure>\n\n\n\n
Payload = {“iss”:”joe”,\\r\\n “exp”:1300819380,\\r\\n “http:\/\/example.com\/is_root”:true}<\/p>
base64url(Payload) = eyJpc3MiOiJqb2UiLA0KICJleHAiOjEzMDA4MTkzODAsDQogImh0dHA6Ly9leGFtcGxlLmNvbS9pc19yb290Ijp0cnVlfQ<\/p><\/blockquote>\n\n\n\n
import base64\nPayload = {\"iss\":\"joe\",\\r\\n \"exp\":1300819380,\\r\\n \"http:\/\/example.com\/is_root\":true}\npayload_encoded = (b'{\"iss\":\"joe\",\\r\\n \"exp\":1300819380,\\r\\n \"http:\/\/example.com\/is_root\":true}')\nprint(payload_encoded)<\/code><\/pre>\n\n\n\n
3. \u751f\u6210 Signature \u65f6\u5c06\u5934\u90e8\u548c\u8f7d\u8377\u89c6\u4e3a\u4e00\u4f53<\/strong><\/p>\n\n\n\n
Message<\/em><\/strong> = ASCII(BASE64URL(UTF8(JWS Protected Header)) || \u2019.\u2019 || BASE64URL(JWS Payload))<\/p><\/blockquote>\n\n\n\n
HMAC_SHA256 \u7b7e\u540d\u65f6\u9700\u8981\u7528\u5230\u5bf9\u79f0\u5bc6\u5319 Key\uff0c\u8fd9\u91cc\u7684 Key \u662f\u9884\u5148\u5546\u91cf\u597d\u7684<\/p>\n\n\n\n
Key<\/em><\/strong> = AyM1SysPpbyDfgZld3umj1qzKObwVMkoqQ-EstJQLr_T-1qS0gZH75aKtMN3Yj0iPS4hcgUuTwjAzZr1Z9CAow<\/p><\/blockquote>\n\n\n\n
\u56e0\u4e3a Key \u4e5f\u662f base64url \u7f16\u7801\u540e\u7684\u5185\u5bb9\uff0c\u6240\u4ee5\u8981\u83b7\u53d6 Key \u7684\u5b57\u8282\u6570\u7ec4\u9700\u8981 base64url \u89e3\u7801\u4e00\u628a\uff0c\u89e3\u7801\u65f6\u7531\u4e8e Key \u7684\u957f\u5ea6\u4e3a 86\uff0c86%4=2\uff0c\u9700\u8981\u6dfb\u52a0 ‘==’ \u540e\u518d\u8fdb\u884c\u89e3\u7801<\/p>\n\n\n\n
# \u4e5f\u5373\u89e3\u7801\u65f6\u7528\u7684\u662f\u8fd9\u4e2a
\n  Key<\/em><\/strong> = AyM1SysPpbyDfgZld3umj1qzKObwVMkoqQ-EstJQLr_T-1qS0gZH75aKtMN3Yj0iPS4hcgUuTwjAzZr1Z9CAow==<\/p>
Signature<\/em><\/strong> = base64url( HMAC_SHA256(Message, Key) )<\/p><\/blockquote>\n\n\n\n
\u6700\u540e\u5f97\u5230\u7b7e\u540d\u4e3a dBjftJeZ4CVP-mB92K27uhbUJU1p1r_wW1gFWFOEjXk=<\/p>\n\n\n\n
import hashlib\nimport hmac\nimport base64\n\nmessage = bytes('eyJ0eXAiOiJKV1QiLA0KICJhbGciOiJIUzI1NiJ9.eyJpc3MiOiJqb2UiLA0KICJleHAiOjEzMDA4MTkzODAsDQogImh0dHA6Ly9leGFtcGxlLmNvbS9pc19yb290Ijp0cnVlfQ','ascii')\n\nsecret = base64.urlsafe_b64decode('AyM1SysPpbyDfgZld3umj1qzKObwVMkoqQ-EstJQLr_T-1qS0gZH75aKtMN3Yj0iPS4hcgUuTwjAzZr1Z9CAow==')\n\nsignature = base64.urlsafe_b64encode(hmac.new(secret, message, digestmod=hashlib.sha256).digest())\n\nprint(signature)<\/code><\/pre>\n\n\n\n
\u53bb\u6389\u591a\u4f59\u7684 ‘=’ \uff0c\u5c31\u662f\u6700\u7ec8\u7684 Signature\uff1a dBjftJeZ4CVP-mB92K27uhbUJU1p1r_wW1gFWFOEjXk<\/p>\n\n\n\n
\u8fd9\u6837\uff0c\u6700\u7ec8\u7684 JWS \u5c31\u4e3a\uff08\u6362\u884c\u662f\u4e3a\u4e86\u65b9\u4fbf\u770b\uff0c\u5b9e\u9645\u5c31\u662f\u4e00\u4e32\uff09<\/p>\n\n\n\n
eyJ0eXAiOiJKV1QiLA0KICJhbGciOiJIUzI1NiJ9
\n  .
\n  eyJpc3MiOiJqb2UiLA0KICJleHAiOjEzMDA4MTkzODAsDQogImh0dHA6Ly9leGFtcGxlLmNvbS9pc19yb290Ijp0cnVlfQ
\n  .
\n  dBjftJeZ4CVP-mB92K27uhbUJU1p1r_wW1gFWFOEjXk<\/p><\/blockquote>\n\n\n\n
\u5f53\u7136\uff0c\u5b9e\u9645\u4e2d\u53ef\u80fd\u4f1a\u9009\u7528 RSA \u4e4b\u7c7b\u7684\u7b97\u6cd5\u6765\u8fdb\u884c\u7b7e\u540d\uff0c\u53ef\u53c2\u8003 RFC \u6587\u6863\u4e2d\u7684\u6848\u4f8b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u53c2\u8003\u6587\u6863 rfc7515 JWS \u4e5f\u5c31\u662f Json Web Signature\uff0c\u662f\u6784\u9020 JWT \u7684\u57fa […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[25,24,26],"class_list":["post-108","post","type-post","status-publish","format-standard","hentry","category-code","tag-hmac","tag-jws","tag-sha256"],"_links":{"self":[{"href":"https:\/\/www.chenqing.work\/index.php?rest_route=\/wp\/v2\/posts\/108","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.chenqing.work\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.chenqing.work\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.chenqing.work\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.chenqing.work\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=108"}],"version-history":[{"count":1,"href":"https:\/\/www.chenqing.work\/index.php?rest_route=\/wp\/v2\/posts\/108\/revisions"}],"predecessor-version":[{"id":111,"href":"https:\/\/www.chenqing.work\/index.php?rest_route=\/wp\/v2\/posts\/108\/revisions\/111"}],"wp:attachment":[{"href":"https:\/\/www.chenqing.work\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=108"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.chenqing.work\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=108"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.chenqing.work\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=108"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}