The current version of the standard (ISO/IEC 29150:2011) embodies four efficient signcryption mechanisms:

  • Discrete logarithm based signcryption mechanism (DLSC)
  • Discrete logarithm on elliptic curves based signcryption mechanism (ECDLSC)
  • Integer factorization based signcryption mechanism (IFSC)
  • Encrypt-then-sign based signcryption mechanism (EtS)