BN_kronecker
int BN_kronecker(const BIGNUM *a,const BIGNUM *b,BN_CTX *ctx); /* returns -2 for error */
if ((jacobi_symbol = BN_kronecker(D, n, ctx)) == -2)
LCRYPTO_ALIAS(BN_kronecker);
switch (BN_kronecker(n, p, ctx)) {
if ((kronecker = BN_kronecker(a_mod_p, p, ctx)) == -2)
LCRYPTO_USED(BN_kronecker);
kronecker = BN_kronecker(a, b, ctx);