ECC_Encrypt_Key does not work properly.

[Allevon412]

Prerequisites

• [x ] Checked the developer manual
• [x ] Checked that your issue isn't already filed: https://github.com/issues?utf8=✓&q=repo%3Alibtom%2Flibtomcrypt
• [ x] Checked that your issue isn't due to the fact that you're using asymmetric cryptography and you forgot linking in and/or setting an MPI provider (usually this causes either random crashes or runtime errors like LTC_ARGCHK 'ltc_mp.name != NULL' failure ...). c.f. Ch. "Math Descriptors" of the developer manual.
• [x ] Checked that your issue isn't related to TomsFastMath's limitation that PK operations can by default only be done with max. 2048bit keys

Description

[Description of the issue]

Steps to Reproduce

establish the math provider description:

create a PRNG state

Use PRNG to create AES key. (Not super relevant for this issue)

Encrypt the AES Key using ECC:

When calling ECC_Encrypt_key function the following code stream happens: ECC_Encrypt_Key calls ECC_Copy_Curve:

Then ECC_Copy_Curve calls mp_copy using the srckey->dp.prime variable. However, I believe this is meant to be a pointer to the primer number for the src key and not the prime number itself. It appears that when the mp_copy function is called the parameter passed is the prime.

Prime number:

mp_copy calls copy function using improper vars?:

see src value of a as prime number. destination value of b as address.

Continuing exception occurs:

Version

define SCRYPT "1.18.2-develop"

Additional Information

Any additional information, configuration or data that might be necessary to reproduce the issue.

[Allevon412]

nvm. I was using the library incorrectly. I didn't create a ecc_key variable and import my public key to it.