Macsha256_HMAC=null;BASE64Decoderdecoder=null;BASE64Encoderencoder=null;try{decoder=newsun.misc.BASE64Decoder();SecretKeysecret_key=newSecretKeySpec(decoder.decodeBuffer(sAccessKey),"HmacSHA256");sha256_HMAC=Mac.getInstance(secret_key.getAlgorithm()...
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