{"version":3,"file":"crypto.cjs","names":[],"sources":["../src/crypto.ts"],"sourcesContent":["import { getWebcryptoSubtle } from \"@better-auth/utils\";\nconst algorithm = { name: \"HMAC\", hash: \"SHA-256\" };\n\nexport const getCryptoKey = async (secret: string | BufferSource) => {\n\tconst secretBuf =\n\t\ttypeof secret === \"string\" ? new TextEncoder().encode(secret) : secret;\n\treturn await getWebcryptoSubtle().importKey(\n\t\t\"raw\",\n\t\tsecretBuf,\n\t\talgorithm,\n\t\tfalse,\n\t\t[\"sign\", \"verify\"],\n\t);\n};\n\nexport const verifySignature = async (\n\tbase64Signature: string,\n\tvalue: string,\n\tsecret: CryptoKey,\n): Promise<boolean> => {\n\ttry {\n\t\tconst signatureBinStr = atob(base64Signature);\n\t\tconst signature = new Uint8Array(signatureBinStr.length);\n\t\tfor (let i = 0, len = signatureBinStr.length; i < len; i++) {\n\t\t\tsignature[i] = signatureBinStr.charCodeAt(i);\n\t\t}\n\t\treturn await getWebcryptoSubtle().verify(\n\t\t\talgorithm,\n\t\t\tsecret,\n\t\t\tsignature,\n\t\t\tnew TextEncoder().encode(value),\n\t\t);\n\t} catch (e) {\n\t\treturn false;\n\t}\n};\n\nconst makeSignature = async (\n\tvalue: string,\n\tsecret: string | BufferSource,\n): Promise<string> => {\n\tconst key = await getCryptoKey(secret);\n\tconst signature = await getWebcryptoSubtle().sign(\n\t\talgorithm.name,\n\t\tkey,\n\t\tnew TextEncoder().encode(value),\n\t);\n\t// the returned base64 encoded signature will always be 44 characters long and end with one or two equal signs\n\treturn btoa(String.fromCharCode(...new Uint8Array(signature)));\n};\n\nexport const signCookieValue = async (\n\tvalue: string,\n\tsecret: string | BufferSource,\n) => {\n\tconst signature = await makeSignature(value, secret);\n\tvalue = `${value}.${signature}`;\n\tvalue = encodeURIComponent(value);\n\treturn value;\n};\n"],"mappings":";;;;AACA,MAAM,YAAY;CAAE,MAAM;CAAQ,MAAM;CAAW;AAEnD,MAAa,eAAe,OAAO,WAAkC;CACpE,MAAM,YACL,OAAO,WAAW,WAAW,IAAI,aAAa,CAAC,OAAO,OAAO,GAAG;AACjE,QAAO,kDAA0B,CAAC,UACjC,OACA,WACA,WACA,OACA,CAAC,QAAQ,SAAS,CAClB;;AAGF,MAAa,kBAAkB,OAC9B,iBACA,OACA,WACsB;AACtB,KAAI;EACH,MAAM,kBAAkB,KAAK,gBAAgB;EAC7C,MAAM,YAAY,IAAI,WAAW,gBAAgB,OAAO;AACxD,OAAK,IAAI,IAAI,GAAG,MAAM,gBAAgB,QAAQ,IAAI,KAAK,IACtD,WAAU,KAAK,gBAAgB,WAAW,EAAE;AAE7C,SAAO,kDAA0B,CAAC,OACjC,WACA,QACA,WACA,IAAI,aAAa,CAAC,OAAO,MAAM,CAC/B;UACO,GAAG;AACX,SAAO;;;AAIT,MAAM,gBAAgB,OACrB,OACA,WACqB;CACrB,MAAM,MAAM,MAAM,aAAa,OAAO;CACtC,MAAM,YAAY,kDAA0B,CAAC,KAC5C,UAAU,MACV,KACA,IAAI,aAAa,CAAC,OAAO,MAAM,CAC/B;AAED,QAAO,KAAK,OAAO,aAAa,GAAG,IAAI,WAAW,UAAU,CAAC,CAAC;;AAG/D,MAAa,kBAAkB,OAC9B,OACA,WACI;CACJ,MAAM,YAAY,MAAM,cAAc,OAAO,OAAO;AACpD,SAAQ,GAAG,MAAM,GAAG;AACpB,SAAQ,mBAAmB,MAAM;AACjC,QAAO"}