Michael Sauer
1b0501179d
Docker-Build mit gcc-arm-none-eabi 4.9-2014q4 (statt Homebrew-Cask) verwendet, Dockerfile/tools/docker.sh dafür aus Task 13 vorgezogen. cmake/sdk.cmake schont gcc 4.9 (kennt -fcommon/-Wno-error=... nicht). Zwei zusätzliche SDK-Stubs (EarlyInit, pre_gpio_config) in src/sys/sdk_stubs.c ergänzt, siehe sdk/PATCHES.md.
39 lines
1.3 KiB
C
39 lines
1.3 KiB
C
#ifndef RC4_H
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#define RC4_H
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#include "wm_crypto_hard.h"
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void Arc4Init(psCipherContext_t *ctx, unsigned char *key, uint32 keylen);
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int32 Arc4_skip(psCipherContext_t *ctx, unsigned char *in,
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unsigned char *out, size_t skip, uint32 len);
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/**
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* rc4_skip - XOR RC4 stream to given data with skip-stream-start
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* @key: RC4 key
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* @keylen: RC4 key length
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* @skip: number of bytes to skip from the beginning of the RC4 stream
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* @data: data to be XOR'ed with RC4 stream
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* @data_len: buf length
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* Returns: 0 on success, -1 on failure
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*
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* Generate RC4 pseudo random stream for the given key, skip beginning of the
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* stream, and XOR the end result with the data buffer to perform RC4
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* encryption/decryption.
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*/
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int rc4_skip(const u8 *key, size_t keylen, size_t skip,
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u8 *data, size_t data_len);
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/**
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* rc4 - XOR RC4 stream to given data with skip-stream-start
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* @key: RC4 key
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* @keylen: RC4 key length
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* @data: data to be XOR'ed with RC4 stream
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* @data_len: buf length
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* Returns: 0 on success, -1 on failure
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*
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* Generate RC4 pseudo random stream for the given key, skip beginning of the
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* stream, and XOR the end result with the data buffer to perform RC4
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* encryption/decryption.
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*/
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int rc4(const u8 *key, size_t keylen, u8 *data, size_t data_len);
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#endif /* end of RC4_H */
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