softsign key invalid length

[yulidai]

the length of signing.key which is generated by using tmkms keygen signing.key is 44

then editing tmkms.toml like below:

[[providers.softsign]]
id = "test-chain-PGCIY1"
path = "/Users/leedy/Dev/kms/tests/support/signing.key"

after run tmkms start i'll get error can't open /Users/leedy/Dev/kms/tests/support/signing.key: invalid length: invalid length

the default signing.key is TEST KEY ONLY: DO **NOT** USE!!1 but success, it's length is 32

how should i do for fixing this problem? thanks :)

[tarcieri]

It looks like the the key encoding in the softsign decoder is hardcoded to IDENTITY (i.e. raw binary):

https://github.com/tendermint/kms/blob/master/src/keyring/ed25519/softsign.rs#L21

It needs to be updated to use SecretKeyEncoding:

https://github.com/tendermint/kms/blob/master/src/keyring/mod.rs#L18

[yulidai]

@tarcieri thank you, successfully started!

but after that, the height of tendermint seems can't grow up.

should i copy the content of signing.key to priv_validator.json of tendermint?
if i need to do so, then what should i do for generating public key of signing.key?

thank you!

[tarcieri]

The soft signer unfortunately hasn't gotten a lot of attention since we've mainly been focusing on YubiHSM2 (soft signer won't be allowed in production since HSMs are a requirement).

If you have a recent version of tmkms (v0.2.2+), I believe tmkms start -v will print out the soft signer's bech32 address. If you have that, you can use this procedure to enroll a validator with a key in tmkms:

https://forum.cosmos.network/t/ann-tendermint-kms-v0-2-validator-signing-support/1361/30

It might be best to continue conversations about getting your validator online there so we can use this issue for tracking the soft signer bugfix.

[yulidai]

@tarcieri thanks a lot, successed by using signer's bech32 address in gaiad.

Thanks for your patience again

[valuead]

@yulidai can you share with us please your working version?

[yulidai]

@yulidai can you share with us please your working version?

At that time, the test passed tmkms 0.2.3