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4c68a8c)
If the result of an RSA encryption or decryption operation can be represented
in less bytes than given, gcry_mpi_print() will not add leading zero bytes. Fix
this by adding those ourself.
gcry_mpi_t outmpi = gcry_mpi_new(len * 8);
gcry_mpi_powm(outmpi, inmpi, rsa->e, rsa->n);
gcry_mpi_t outmpi = gcry_mpi_new(len * 8);
gcry_mpi_powm(outmpi, inmpi, rsa->e, rsa->n);
+ int pad = len - (gcry_mpi_get_nbits(outmpi) + 7) / 8;
+ while(pad--)
+ *(char *)out++ = 0;
+
check(gcry_mpi_print(GCRYMPI_FMT_USG, out,len, NULL, outmpi));
return true;
check(gcry_mpi_print(GCRYMPI_FMT_USG, out,len, NULL, outmpi));
return true;
gcry_mpi_t outmpi = gcry_mpi_new(len * 8);
gcry_mpi_powm(outmpi, inmpi, rsa->d, rsa->n);
gcry_mpi_t outmpi = gcry_mpi_new(len * 8);
gcry_mpi_powm(outmpi, inmpi, rsa->d, rsa->n);
+ int pad = len - (gcry_mpi_get_nbits(outmpi) + 7) / 8;
+ while(pad--)
+ *(char *)out++ = 0;
+
check(gcry_mpi_print(GCRYMPI_FMT_USG, out,len, NULL, outmpi));
return true;
check(gcry_mpi_print(GCRYMPI_FMT_USG, out,len, NULL, outmpi));
return true;