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Do not construct out-of-bound pointers in SHA512/SHA1/RIPEMD160 code

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This commit is contained in:
Pieter Wuille 2019-05-03 16:08:11 -07:00
parent 94daebf327
commit c01c065b9d
3 changed files with 3 additions and 3 deletions
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2
src/crypto/ripemd160.cpp
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@ -256,7 +256,7 @@ CRIPEMD160& CRIPEMD160::Write(const unsigned char* data, size_t len)
ripemd160::Transform(s, buf); ripemd160::Transform(s, buf);
bufsize = 0; bufsize = 0;
} }
while (end >= data + 64) { while (end - data >= 64) {
// Process full chunks directly from the source. // Process full chunks directly from the source.
ripemd160::Transform(s, data); ripemd160::Transform(s, data);
bytes += 64; bytes += 64;

2
src/crypto/sha1.cpp
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@ -163,7 +163,7 @@ CSHA1& CSHA1::Write(const unsigned char* data, size_t len)
sha1::Transform(s, buf); sha1::Transform(s, buf);
bufsize = 0; bufsize = 0;
} }
while (end >= data + 64) { while (end - data >= 64) {
// Process full chunks directly from the source. // Process full chunks directly from the source.
sha1::Transform(s, data); sha1::Transform(s, data);
bytes += 64; bytes += 64;

2
src/crypto/sha512.cpp
View file

@ -168,7 +168,7 @@ CSHA512& CSHA512::Write(const unsigned char* data, size_t len)
sha512::Transform(s, buf); sha512::Transform(s, buf);
bufsize = 0; bufsize = 0;
} }
while (end >= data + 128) { while (end - data >= 128) {
// Process full chunks directly from the source. // Process full chunks directly from the source.
sha512::Transform(s, data); sha512::Transform(s, data);
data += 128; data += 128;