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authorRob Austein <sra@hactrn.net>2017-04-06 21:16:38 -0400
committerRob Austein <sra@hactrn.net>2017-04-06 21:16:38 -0400
commit1386e9b75feeff4ed5446b0169d286e54d7317ff (patch)
tree30124c5509a546057ed5c55ab1620904808b0682 /cryptech_rpcmuxd
parent3828bd1d72c5fd3d3e0bac4548aee9594f63b3ca (diff)
Defend against Bleichenbacher's Attack in hal_rpc_pkey_import().
Borrowing an idea from PyCrypto, we substitute CSPRNG output for the value of a decrypted KEK if the PKCS #1.5 type 02 block format check fails. Done properly, this should be very close to constant-time, and should make it harder to use hal_rpc_pkey_import() as an oracle.
Diffstat (limited to 'cryptech_rpcmuxd')
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