The recommended minimums for PBKDF2, as per OWASP Cheat Sheet Series (https://cheatsheetseries.owasp.org/cheatsheets/Password_Storage_Cheat_Sheet.html), are:
If FIPS-140 compliance is required, use PBKDF2 with a work factor of 310,000 or more and set with an internal hash function of HMAC-SHA-256.
Previous default configuration:
algorithm=SHA1, iterations=185000, hashLength=256
New default configuration:
algorithm=SHA256, iterations=310000, hashLength=256
The default salt length was also updated from 8 to 16.
Closes gh-10506, Closes gh-10489
The recommended minimums for scrypt, as per OWASP Cheat Sheet Series (https://cheatsheetseries.owasp.org/cheatsheets/Password_Storage_Cheat_Sheet.html), are:
Use scrypt with a minimum CPU/memory cost parameter of (2^16), a minimum block size of 8 (1024 bytes), and a parallelization parameter of 1.
Previous default configuration:
cpuCost=16384, memoryCost=8, parallelism=1
New default configuration:
cpuCost=65536, memoryCost=8, parallelism=1
The default salt length was also updated from 64 to 16.
Issue gh-10506
The recommended minimums for Argon2, as per OWASP Cheat Sheet Series (https://cheatsheetseries.owasp.org/cheatsheets/Password_Storage_Cheat_Sheet.html), are:
Use Argon2id with a minimum configuration of 15 MiB of memory, an iteration count of 2, and 1 degree of parallelism.
Previous default configuration:
memory=4, iterations=3, parallelism=1
New default configuration:
memory=16, iterations=2, parallelism=1
Issue gh-10506
Add constructors with a salt length input parameter.
Default salt length is still 8-byte long like before when
saltGenerator was initialized with call to
KeyGenerators#secureRandom() which use
SecureRandomBytesKeyGenerator#DEFAULT_KEY_LENGTH.
Closes gh-4372
Consistently use `assertThatExceptionOfType(...).isThrownBy(...)`
rather than `assertThatCode` or `assertThatThrownBy`. This aligns with
Spring Boot and Spring Cloud. It also allows the convenience
`assertThatIllegalArgument` and `assertThatIllegalState` methods to
be used.
Issue gh-8945
Remove all blank lines from test code so that test methods are
visually grouped together. This generally helps to make the test
classes easer to scan, however, the "given" / "when" / "then"
blocks used by some tests are now not as easy to discern.
Issue gh-8945
Update all utility classes so that they have a private constructor. This
prevents users from accidentally creating an instance, when they should
just use the static methods directly.
Issue gh-8945
Add an additional lines after the copyright header and before the
`package` declaration. This aligns with the style used by Spring
Framework.
Issue gh-8945
Replace static imports with class referenced methods. With the exception
of a few well known static imports, checkstyle restricts the static
imports that a class can use. For example, `asList(...)` would be
replaced with `Arrays.asList(...)`.
Issue gh-8945
Migrate Mockito imports to use the BDD variant. This aligns better with
the "given" / "when" / "then" style used in most tests since the "given"
block now uses Mockito `given(...)` calls.
The commit also updates a few tests that were accidentally using
Power Mockito when regular Mockito could be used.
Issue gh-8945
Apply an Eclipse cleanup rules to ensure that fields are always accessed
using `this.`. This aligns with the style used by Spring Framework and
helps users quickly see the difference between a local and member
variable.
Issue gh-8945
Use '^\s+//\ \~\ .*$' and '^\s+//\ ============+$' regular expression
searches to remove superfluous comments.
Prior to this commit, many classes would have comments to indicate
blocks of code (such as constructors/methods/instance fields). These
added a lot of noise and weren't all that helpful, especially given
the outline views available in most modern IDEs.
Issue gh-8945
Add PasswordEncoder for the Argon2 hashing algorithm (Password Hashing
Competition (PHC) winner).
This implementation uses the BouncyCastle-implementation of Argon2.
Fixes gh-5354
If the salt length is 28 characters and the
version is 2{a,x,y}, an IndexOutOfBoundsException
is thrown. This commit adds an extra check that
the salt length should be at least 29 characters long
if the version is not equal to "2".
Fixes: gh-6907
Joe Grandja
Rob Winch
Josh Cummings
Jihoon Cha
heowc
Loic Guibert
Phillip Webb
Eleftheria Stein
Alan Czajkowski
YYTVicky
Rafael Garcia
Lars Grefer
Simeon Macke
Léon van der Kaap
Spring Operator
linfeng