Trimmed back to just SHA-1 functions (to fit on Uno R2)

README

@@ -1,56 +1,13 @@
-Cryptosuite is a cryptographic library for Arduino (including SHA and HMAC-SHA)
+This is a trimmed-down version of Peter Knight's excellent Cryptosuite library for Arduino, supporting secure hashing and hashed message authentication using SHA-1 and HMAC-SHA-1.
 
-It currently supports secure hashing and hashed message authentication using SHA-1, SHA-256, HMAC-SHA-1 and HMAC-SHA-256.
+To help fit complex applications within the limited code space of the Arduino, this version strips out the SHA-256 functionality -- it wasn't required of our OAuth-driven code.  If you specifically require this capability (and can afford the extra program space), download the original full version of the library here:
 
-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].
+https://github.com/Cathedrow/Cryptosuite
 
-Using SHA-256:
-  #include "sha256.h"
-  ...
-  uint8_t *hash;
-  Sha256.init();
-  Sha256.print("This is a message to hash");
-  hash = Sha256.result();
+The original also contains a test suite and further exposition on the use of hash functions.
 
-  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
+Installation:
+  Make a 'libraries' directory with your Arduino sketches folder if you do not already have one.
+  Rename this folder 'Sha' and move it into that directory.
+  Restart Arduino IDE to rescan for new libraries.