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Cryptographic suite for Arduino (SHA, HMAC-SHA)
This project forked from cathedrow/cryptosuite
Cryptographic suite for Arduino (SHA, HMAC-SHA)
Cryptosuite is a cryptographic library for Arduino (including SHA and HMAC-SHA) It currently supports secure hashing and hashed message authentication using SHA-1, SHA-256, HMAC-SHA-1 and HMAC-SHA-256. Installation: Make a 'libraries' directory with your Arduino sketches folder if you do not already have one. Copy the 'Sha' directory into that directory. Restart Arduino to rescan for new libraries. Using SHA-1: #include "sha1.h" ... uint8_t *hash; Sha1.init(); Sha1.print("This is a message to hash"); hash = Sha1.result(); The hash result is then stored in hash[0], hash[1] .. hash[19]. Using HMAC-SHA-1: #include "sha1.h" ... uint8_t *hash; Sha1.initHmac("hash key",8); // key, and length of key in bytes Sha1.print("This is a message to hash"); hash = Sha1.resultHmac(); The hash result is then stored in hash[0], hash[1] .. hash[19]. Using SHA-256: #include "sha256.h" ... uint8_t *hash; Sha256.init(); Sha256.print("This is a message to hash"); hash = Sha256.result(); The hash result is then stored in hash[0], hash[1] .. hash[31]. Using HMAC-SHA-256: #include "sha256.h" ... uint8_t *hash; Sha256.initHmac("hash key",8); // key, and length of key in bytes Sha256.print("This is a message to hash"); hash = Sha256.resultHmac(); The hash result is then stored in hash[0], hash[1] .. hash[31]. Verification: The provided example code tests against published test vectors. SHA-1: FIPS 180-2, RFC3174 compliant HMAC-SHA-1: FIPS 198a compliant SHA-256: FIPS 180-2, RFC4231 compliant HMAC-SHA-256: RFC4231 compliant
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