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ippStsBadModulusErr
Modular inversion requires the value and modulus to satisfy the arithmetic requirements of the operation. If the modulus is invalid or the inverse does not exist under it, IPP cannot complete the inversion.
For cryptographic code, this can reveal a wrong modulus, corrupted domain parameters or input that is not relatively prime to the modulus.
Check these details
- Modulus size, sign and expected prime or composite-domain requirements.
- Whether operands were reduced modulo the same value.
- ECC, RSA or finite-field contexts initialized with matching parameters.
Intel IPP Error Reporting · Intel IPP Cryptography Reference
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