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Bill Buchanan
2021-02-18 20:56:05 +00:00
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@@ -268,7 +268,33 @@ What is the ECC method that you have used?
If you want to see an example of ECC, try here: https://asecuritysite.com/encryption/ecc
### C.4
First we need to generate a private key with:
```
openssl ecparam -list_curves
```
Outline three curves supported:
### C.5
Let’s select two other curves:
```
openssl ecparam -name secp128r1 -genkey -out priv.pem
openssl ecparam -in priv.pem -text -param_enc explicit -noout
```
and:
```
openssl ecparam -name secp521r1 -genkey -out priv.pem
openssl ecparam -in priv.pem -text -param_enc explicit -noout
```
How does secp128k1, secp256k1 and secp512r1 different in the parameters used? Perhaps identify the length of the prime number used, and the size of the base point (G).
If you want to see an example of ECC, try [here](https://asecuritysite.com/encryption/ecc)
## D Elliptic Curve Encryption
### D.1