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43 lines
1012 B
C++
43 lines
1012 B
C++
#include "Arduino.h"
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#include "md5.h"
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#include "MD5Builder.h"
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#define hex_char_to_byte(c) (((c)>='a'&&(c)<='f')?((c)-87):((c)>='A'&&(c)<='F')?((c)-55):((c)>='0'&&(c)<='9')?((c)-48):0)
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void MD5Builder::begin(void){
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memset(_buf, 0x00, 16);
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MD5Init(&_ctx);
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}
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void MD5Builder::add(uint8_t * data, uint16_t len){
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MD5Update(&_ctx, data, len);
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}
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void MD5Builder::addHexString(const char * data){
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uint16_t i, len = strlen(data);
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uint8_t * tmp = (uint8_t*)malloc(len/2);
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if(tmp == NULL)
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return;
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for(i=0; i<len; i+=2) tmp[i/2] = (hex_char_to_byte(data[i]) & 0x0F) << 4 | (hex_char_to_byte(data[i+1]) & 0x0F);
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add(tmp, len/2);
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free(tmp);
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}
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void MD5Builder::calculate(void){
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MD5Final(_buf, &_ctx);
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}
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void MD5Builder::getBytes(uint8_t * output){
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memcpy(output, _buf, 16);
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}
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void MD5Builder::getChars(char * output){
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for(uint8_t i = 0; i < 16; i++)
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sprintf(output + (i * 2), "%02x", _buf[i]);
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}
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String MD5Builder::toString(void){
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char out[32];
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getChars(out);
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return String(out);
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} |