38 lines
889 B
38 lines
889 B
#include "cache.h" |
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#ifdef DC_SHA1_EXTERNAL |
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/* |
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* Same as SHA1DCInit, but with default save_hash=0 |
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*/ |
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void git_SHA1DCInit(SHA1_CTX *ctx) |
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{ |
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SHA1DCInit(ctx); |
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SHA1DCSetSafeHash(ctx, 0); |
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} |
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#endif |
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/* |
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* Same as SHA1DCFinal, but convert collision attack case into a verbose die(). |
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*/ |
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void git_SHA1DCFinal(unsigned char hash[20], SHA1_CTX *ctx) |
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{ |
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if (!SHA1DCFinal(hash, ctx)) |
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return; |
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die("SHA-1 appears to be part of a collision attack: %s", |
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hash_to_hex_algop(hash, &hash_algos[GIT_HASH_SHA1])); |
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} |
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/* |
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* Same as SHA1DCUpdate, but adjust types to match git's usual interface. |
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*/ |
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void git_SHA1DCUpdate(SHA1_CTX *ctx, const void *vdata, unsigned long len) |
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{ |
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const char *data = vdata; |
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/* We expect an unsigned long, but sha1dc only takes an int */ |
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while (len > INT_MAX) { |
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SHA1DCUpdate(ctx, data, INT_MAX); |
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data += INT_MAX; |
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len -= INT_MAX; |
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} |
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SHA1DCUpdate(ctx, data, len); |
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}
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