mirror of https://git.matrix.org/git/olm.git
31 lines
1.2 KiB
C
31 lines
1.2 KiB
C
/*********************************************************************
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* Filename: arcfour.h
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* Author: Brad Conte (brad AT bradconte.com)
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* Copyright:
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* Disclaimer: This code is presented "as is" without any guarantees.
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* Details: Defines the API for the corresponding ARCFOUR implementation.
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*********************************************************************/
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#ifndef ARCFOUR_H
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#define ARCFOUR_H
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/*************************** HEADER FILES ***************************/
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#include <stddef.h>
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/**************************** DATA TYPES ****************************/
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typedef unsigned char BYTE; // 8-bit byte
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/*********************** FUNCTION DECLARATIONS **********************/
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// Input: state - the state used to generate the keystream
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// key - Key to use to initialize the state
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// len - length of key in bytes (valid lenth is 1 to 256)
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void arcfour_key_setup(BYTE state[], const BYTE key[], int len);
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// Pseudo-Random Generator Algorithm
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// Input: state - the state used to generate the keystream
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// out - Must be allocated to be of at least "len" length
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// len - number of bytes to generate
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void arcfour_generate_stream(BYTE state[], BYTE out[], size_t len);
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#endif // ARCFOUR_H
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