In some cases the documentation for functions in this package was
lacking from the beginning and, in order cases, the documentation didn't
keep pace as the package grew.
This change somewhat addresses that.
Updates #13711.
Change-Id: I25b2bb1fcd4658c5417671e23cf8e644d08cb9ab
Reviewed-on: https://go-review.googlesource.com/18486
Reviewed-by: Rob Pike <r@golang.org>
Reviewed-by: Andrew Gerrand <adg@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
This change adds a check after computing an RSA signature that the
signature is correct. This prevents an error in the CRT computation from
leaking the private key. See references in the linked bug.
benchmark old ns/op new ns/op delta
BenchmarkRSA2048Sign-3 5713305 6225215 +8.96%
Fixes#12453
Change-Id: I1f24e0b542f7c9a3f7e7ad4e971db3dc440ed3c1
Reviewed-on: https://go-review.googlesource.com/17862
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
Change 7c7126cfeb removed the primality
checking in Validate to save CPU time. That check happened to be
filtering out private keys with primes that were zero or one. Without
that filtering, such primes cause a panic when trying to use such a
private key.
This change specifically checks for and rejects primes ≤ 1 in Validate.
Fixes#11233.
Change-Id: Ie6537edb8250c07a45aaf50dab43227002ee7386
Reviewed-on: https://go-review.googlesource.com/11611
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
These were found by grepping the comments from the go code and feeding
the output to aspell.
Change-Id: Id734d6c8d1938ec3c36bd94a4dbbad577e3ad395
Reviewed-on: https://go-review.googlesource.com/10941
Reviewed-by: Aamir Khan <syst3m.w0rm@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
crypto/rand.Reader doesn't ensure that short reads don't happen. This
change contains a couple of fixups where io.ReadFull wasn't being used
with it.
Change-Id: I3855b81f5890f2e703112eeea804aeba07b6a6b8
Reviewed-on: https://go-review.googlesource.com/7645
Reviewed-by: Minux Ma <minux@golang.org>
Reviewed-by: Andrew Gerrand <adg@golang.org>
Decrypter is an interface to support opaque private keys that perform
decryption operations. This interface is analogous to the crypto.Signer
interface.
This change introduces the crypto.Decrypter interface and implements
the crypto.Decrypter interface for rsa.PrivateKey with both OAEP and
PKCS#1 v1.5 padding modes.
Change-Id: I433f649f84ed3c2148337d735cafd75f1d94a904
Reviewed-on: https://go-review.googlesource.com/3900
Reviewed-by: Adam Langley <agl@golang.org>
This check is expensive and adversely impacts startup times for some
servers with several, large RSA keys.
It was nice to have, but it's not really going to stop a targetted
attack and was never designed to – hopefully people's private keys
aren't attacker controlled!
Overall I think the feeling is that people would rather have the CPU
time back.
Fixes#6626.
Change-Id: I0143a58c9f22381116d4ca2a3bbba0d28575f3e5
Reviewed-on: https://go-review.googlesource.com/5641
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Adam Langley <agl@golang.org>
