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authorbodo <bodo>2003-04-11 15:01:42 +0000
committerbodo <bodo>2003-04-11 15:01:42 +0000
commit52f0f325ef7e6618994f5a0e1701930c8acde8b9 (patch)
tree28c377b03bc443a0558b3871f41020d8214b06ba /CHANGES
parent686616f4eac67d86e6c932d3fee8cafce566b844 (diff)
downloadopenssl-52f0f325ef7e6618994f5a0e1701930c8acde8b9.tar.gz
include 'Changes between 0.9.6i and 0.9.6j'
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@@ -1942,6 +1942,31 @@ des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
*) Clean old EAY MD5 hack from e_os.h.
[Richard Levitte]
+ Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
+
+ *) Countermeasure against the Klima-Pokorny-Rosa extension of
+ Bleichbacher's attack on PKCS #1 v1.5 padding: treat
+ a protocol version number mismatch like a decryption error
+ in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
+ [Bodo Moeller]
+
+ *) Turn on RSA blinding by default in the default implementation
+ to avoid a timing attack. Applications that don't want it can call
+ RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
+ They would be ill-advised to do so in most cases.
+ [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
+
+ *) Change RSA blinding code so that it works when the PRNG is not
+ seeded (in this case, the secret RSA exponent is abused as
+ an unpredictable seed -- if it is not unpredictable, there
+ is no point in blinding anyway). Make RSA blinding thread-safe
+ by remembering the creator's thread ID in rsa->blinding and
+ having all other threads use local one-time blinding factors
+ (this requires more computation than sharing rsa->blinding, but
+ avoids excessive locking; and if an RSA object is not shared
+ between threads, blinding will still be very fast).
+ [Bodo Moeller]
+
Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
*) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked