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updated readme

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Matteo Brichese 2017-06-05 17:11:58 -07:00
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README.md
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### Tiny AES128 in C
### Tiny AES in C
This is a small and portable implementation of the AES128 ECB and CBC encryption algorithms written in C.
The API is very simple and looks like this (I am using C99 `<stdint.h>`-style annotated types):
```C
void AES128_ECB_encrypt(uint8_t* input, const uint8_t* key, uint8_t* output);
void AES128_ECB_decrypt(uint8_t* input, const uint8_t* key, uint8_t* output);
void AES128_CBC_encrypt_buffer(uint8_t* output, uint8_t* input, uint32_t length, const uint8_t* key, const uint8_t* iv);
void AES128_CBC_decrypt_buffer(uint8_t* output, uint8_t* input, uint32_t length, const uint8_t* key, const uint8_t* iv);
void AES_ECB_encrypt(uint8_t* input, const uint8_t* key, uint8_t* output);
void AES_ECB_decrypt(uint8_t* input, const uint8_t* key, uint8_t* output);
void AES_CBC_encrypt_buffer(uint8_t* output, uint8_t* input, uint32_t length, const uint8_t* key, const uint8_t* iv);
void AES_CBC_decrypt_buffer(uint8_t* output, uint8_t* input, uint32_t length, const uint8_t* key, const uint8_t* iv);
```
You can choose to use the standard 128b key or 192 by defining AES192 or 256b by defining AES256 - beta
You can choose to use one or both of the modes-of-operation, by defining the symbols CBC and ECB. See the header file for clarification.
@ -61,5 +62,3 @@ This implementation is verified against the data in:
All material in this repository is in the public domain.
I am a bit slow to react to pull requests and issues, but I have an ambition to go through all issues sometime in the future and release an API-stable version.