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GHC 10.0.0.20260917 · lts/ghc-10.0.x · 8fef28d · 2026-11-02

ModuleHsOpenSSL-0.11.7.11Haskell2010

OpenSSL.Random

PRNG services See http://www.openssl.org/docs/crypto/rand.html For random Integer generation, see OpenSSL.BN

Contents

Random byte generation

Synopsis

value randBytes
value prandBytes
value add

PackageHsOpenSSL-0.11.7.11
Exports3
LanguageHaskell2010
LicenceLicenseRef-PublicDomain
SourceRandom.hs

Random byte generation

valuerandBytes

:: Int
the number of bytes requested
-> IO ByteString

Return a bytestring consisting of the given number of strongly random bytes

valueprandBytes

:: Int
the number of bytes requested
-> IO ByteString

Return a bytestring consisting of the given number of pseudo random bytes

valueadd

:: ByteString
random data to be added to the pool
-> Int
the number of bits of entropy in the first argument
-> IO ()

Add data to the entropy pool. It's safe to add sensitive information (e.g. user passwords etc) to the pool. Also, adding data with an entropy of 0 can never hurt.