botan v1.13.4 (2023-03-01T00:35:38Z)

DLGroup.this

botan pubkey algo dl_group DLGroup

Create a new group randomly.

  1. this(string name)
  2. this(RandomNumberGenerator rng, PrimeType type, size_t pbits, size_t qbits)
    struct DLGroup
    public
    this
    (
    RandomNumberGenerator rng
    ,
    PrimeType type
    ,
    size_t pbits
    ,
    size_t qbits = 0
    )
  3. this(RandomNumberGenerator rng, Vector!ubyte seed, size_t pbits, size_t qbits)
  4. this(BigInt p1, BigInt g1)
  5. this(BigInt p1, BigInt q1, BigInt g1)

Parameters

rng RandomNumberGenerator

the random number generator to use

type PrimeType

specifies how the creation of primes p and q shall be performed. If type=Strong, then p will be determined as a safe prime, and q will be chosen as (p-1)/2. If type=Prime_Subgroup and qbits = 0, then the size of q will be determined according to the estimated difficulty of the DL problem. If type=DSA_Kosherizer, DSA primes will be created.

pbits size_t

the number of bits of p

qbits size_t

the number of bits of q. Leave it as 0 to have the value determined according to pbits.

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Source

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