Wishlist: Shamir Shared Secret and ECIES #645

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opened 2024-04-19 05:16:25 -05:00 by pakal · 3 comments

pakal commented

2024-04-19 05:16:25 -05:00

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Thanks for the awesome (and low footprint) lib :)

Some more wishlist for the projet ^^

Shamir shared secret, e.g. compatible with Pycryptodome's ones
Providing an alternative to RSA for Public key encryption, for example the powerful but little-implemented ECIES

Thanks for the awesome (and low footprint) lib :) Some more wishlist for the projet ^^ - Shamir shared secret, e.g. compatible with Pycryptodome's ones - Providing an alternative to RSA for Public key encryption, for example the powerful but little-implemented ECIES

sjaeckel commented

2024-04-19 06:00:30 -05:00

(Migrated from github.com)

Thanks for the awesome (and low footprint) lib :)

Shamir shared secret, e.g. compatible with Pycryptodome's ones

Yeah, that would be nice.

Providing an alternative to RSA for Public key encryption, for example the powerful but little-implemented ECIES

There exists ecc_encrypt_key() resp. ecc_decrypt_key() which claims

github.com/libtom/libtomcrypt@f7e6519fae/doc/crypt.tex (L5764-L5766)

Does this work for you?

> Thanks for the awesome (and low footprint) lib :) :) > * Shamir shared secret, e.g. compatible with Pycryptodome's ones Yeah, that would be nice. > * Providing an alternative to RSA for Public key encryption, for example the powerful but little-implemented ECIES There exists `ecc_encrypt_key()` resp. `ecc_decrypt_key()` which claims https://github.com/libtom/libtomcrypt/blob/f7e6519fae1e11ff5ff9d36c84101a673002133b/doc/crypt.tex#L5764-L5766 Does this work for you?

pakal commented

2024-05-01 03:36:18 -05:00

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Here are some references for low-dependency Shamir that I found, just in case it helps

Tested by me on MSP430

https://github.com/fletcher/c-sss ((MIT LICENSE, works)

https://github.com/rbaron/secret (MIT LICENSE, works but uses big matrix to reverse polynomial)

Untested by me

https://github.com/MrJoy/ssss (GNU GENERAL PUBLIC LICENSE, needs GMP)

https://github.com/bertrand-maujean/lib_sss (GNU AFFERO GENERAL PUBLIC LICENSE)

Here are some references for low-dependency Shamir that I found, just in case it helps Tested by me on MSP430 --------------------------- https://github.com/fletcher/c-sss ((MIT LICENSE, works) https://github.com/rbaron/secret (MIT LICENSE, works but uses big matrix to reverse polynomial) Untested by me ------------------- https://github.com/MrJoy/ssss (GNU GENERAL PUBLIC LICENSE, needs GMP) https://github.com/bertrand-maujean/lib_sss (GNU AFFERO GENERAL PUBLIC LICENSE)

pakal commented

2024-05-01 03:47:14 -05:00

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Thanks a lot for the pointer to ecc_encrypt_key(), I had completely missed this one :)

We'd need a quite portable/standard algorithm (compatible with Python implementations too) so I was thinking more of ECIES or the likes, but this one could be a valuable fallback solution, if linked to all languages.

Thanks a lot for the pointer to ecc_encrypt_key(), I had completely missed this one :) We'd need a quite portable/standard algorithm (compatible with Python implementations too) so I was thinking more of ECIES or the likes, but this one could be a valuable fallback solution, if linked to all languages.