Questions tagged [sr25519]

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Why are sr25519 signatures non-deterministic?

According to the polkadot.js docs, both ed25519 and ecdsa signatures are deterministic (given the message and private key, it always produces the same signature). However sr25519 is not. I understand ...
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1 vote
1 answer
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Can I use ECDSA address which is compatible with Ethereum as the Native address in a substrate based blockchain?

For my project, I have to build a blockchain using ECDSA address in order to be compatible with Ethereum. But the native address is in sr25519 scheme in substrate. What should I do to implement this? ...
  • 71
3 votes
2 answers
54 views

How do ECDSA subkeys differ from Bitcoin/Ethereum keys?

As far as I understand, besides the ed25519 and sr25519 signatures, there is a compatibility mode for ECDSA keypairs that should use the secp256k1 curve. Both Bitcoin and Ethereum use the secp256k1 ...
  • 277
12 votes
2 answers
127 views

Why does the all 0 public key have a known private key in SR25519 and ED25519?

We have seen evidence that users can sign messages using the SR25519 and ED25519 public key with all zeros. Why or how is the private key to this public key known? Are there any other things users ...
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