error of rsa_sign_hash with RSA keys of 3072bit and higher #495

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opened 2019-09-05 09:00:09 -05:00 by hekiko · 0 comments

hekiko commented

2019-09-05 09:00:09 -05:00

(Migrated from github.com)

Prerequisites

[*] Checked the developer manual
Checked that your issue isn't already filed: https://github.com/issues?utf8=✓&q=repo%3Alibtom%2Flibtomcrypt
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]

make RSA Keys used rsa_make_key(). key size is 3072bit.
2.rsa_sign_hash() is errored. but if key size is 2048 bit and less,OK.
and rsa_verify_hash() is not errored.
and rsa_encrypt by private key(3072bit) is errored.
but used public key(3072bit) OK.

pls,teach me how to resolve it.

Steps to Reproduce

Version

You can get this information from the define SCRYPT in src/include/tomcrypt.h or your local git repository by running git describe --always --tags --dirty.
Also, please include the compiler, the compiler version, the architecture and (if applicable) the MPI provider, the OS and what version of the OS you're experiencing the issue.

Additional Information

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

### Prerequisites * [*] Checked the developer manual * [ ] Checked that your issue isn't already filed: https://github.com/issues?utf8=✓&q=repo%3Alibtom%2Flibtomcrypt * [ ] 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] 1. make RSA Keys used rsa_make_key(). key size is 3072bit. 2.rsa_sign_hash() is errored. but if key size is 2048 bit and less,OK. and rsa_verify_hash() is not errored. and rsa_encrypt by private key(3072bit) is errored. but used public key(3072bit) OK. pls,teach me how to resolve it. ### Steps to Reproduce  ### Version You can get this information from the define `SCRYPT` in `src/include/tomcrypt.h` or your local git repository by running `git describe --always --tags --dirty`. Also, please include the compiler, the compiler version, the architecture and (if applicable) the MPI provider, the OS and what version of the OS you're experiencing the issue. ### Additional Information Any additional information, configuration or data that might be necessary to reproduce the issue.