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cryptogram [![](https://www.jitpack.io/v/core-lib/cryptogram.svg)](https://www.jitpack.io/#core-lib/cryptogram)\n\n## Installation\n```xml\n\u003crepositories\u003e\n    \u003crepository\u003e\n        \u003cid\u003ejitpack.io\u003c/id\u003e\n        \u003curl\u003ehttps://jitpack.io\u003c/url\u003e\n    \u003c/repository\u003e\n\u003c/repositories\u003e\n\n\u003cdependency\u003e\n    \u003cgroupId\u003ecom.github.core-lib\u003c/groupId\u003e\n    \u003cartifactId\u003ecryptogram\u003c/artifactId\u003e\n    \u003cversion\u003e1.0.0\u003c/version\u003e\n\u003c/dependency\u003e\n\u003cdependency\u003e\n    \u003cgroupId\u003ecommons-codec\u003c/groupId\u003e\n    \u003cartifactId\u003ecommons-codec\u003c/artifactId\u003e\n    \u003cversion\u003e1.11\u003c/version\u003e\n\u003c/dependency\u003e\n```\n\n## Usage\n```java\npublic class Testing {\n\n    @Test\n    public void test() throws Exception {\n        Codec signCodec = new HexCodec();\n        Codec keyCodec = new PlainCodec();\n        StringifyProvider stringifyProvider = new DefaultStringifyProvider();\n        SignatureProvider signatureProvider = new HMACSHA256SignatureProvider();\n        VerificationProvider verificationProvider = new HMACSHA256VerificationProvider();\n\n        Cryptography cryptography = new Cryptography(\n                signCodec,\n                keyCodec,\n                stringifyProvider,\n                signatureProvider,\n                verificationProvider\n        );\n\n        String secretKey = \"io.codex.cryptogram\";\n        Map\u003cString, String\u003e param = new HashMap\u003cString, String\u003e();\n        param.put(\"username\", \"codex\");\n        param.put(\"password\", \"codex\");\n\n        {\n            // HmacSHA256(\"{password=codex\u0026username=codex}\", \"io.codex.cryptogram\")\n            String signature = cryptography.sign(param, secretKey);\n            boolean verified = cryptography.verify(param, signature, secretKey);\n            assert verified : \"A serious bug\";\n        }\n\n        {\n            // HmacSHA256(\"POST /login?{password=codex\u0026username=codex}\u0026timestamp=1539851150142\", \"io.codex.cryptogram\")\n            long timestamp = 1539851150142L;\n            String signature = cryptography.sign(param, \"POST /login?\", \"\u0026timestamp=\" + timestamp, secretKey);\n            boolean verified = cryptography.verify(param, \"POST /login?\", \"\u0026timestamp=\" + timestamp, signature, secretKey);\n            assert verified : \"A serious bug\";\n        }\n    }\n\n}\n```\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fcore-lib%2Fcryptogram","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fcore-lib%2Fcryptogram","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fcore-lib%2Fcryptogram/lists"}