-- v2: bcrypt: Add BCryptKeyDerivation partial implementation (PBKDF2 algorithm). bcrypt: Reorganize hash_handle_from_desc helper so it can be reused. bcrypt: Handle PBKDF2 in BCryptGenerateSymmetricKey. bcrypt: Handle PBKDF2 in BCryptGetProperty. bcrypt: Add PBKDF2 algorithm provider. bcrypt: Fix BcryptDeriveKeyPBKDF2 with NULL salt. include: Add some PBKDF2 related definitions.