Am Mittwoch, 14. Juni 2023, 11:50:52 CEST schrieb Herbert Xu: Hi Herbert, > On Tue, Jun 13, 2023 at 04:17:31PM +0000, Mahmoud Adam wrote: > > check if rsa public exponent is odd and check its value is between > > 2^16 < e < 2^256. > > > > FIPS 186-5 DSS (page 35)[1] specify that: > > > > 1. The public exponent e shall be selected with the following constraints: > > (a) The public verification exponent e shall be selected prior to > > generating the primes, p and q, and the private signature exponent > > d. > > > > (b) The exponent e shall be an odd positive integer such that: > > 2^16 < e < 2^256. > > > > [1] https://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.186-5.pdf > > > > Signed-off-by: Mahmoud Adam <mngyadam@xxxxxxxxxx> Reviewed-by: Stephan Mueller <smueller@xxxxxxxxxx> Ciao Stephan
