Python : Create ECC Keys from private and public key represented in raw bytes

I have following ECC private and public key pairs: Private key : 0x63bd3b01c5ce749d87f5f7481232a93540acdb0f7b5c014ecd9cd32b041d6f33 Public Key : 0x04017655e42a892cc71bccedcb1cd421d03530e1d7edb52cef143c5562c4c6f0129fa5a37738013e64a1ff0e6cb7068815a13000eb162cb7a0214dfcf3c8fa101c Curve : SECP256R1 I want to load these keys in Python to perform signing operations. Can you please suggest possible steps? (I am comfortable to use “openssl ec” tools if necessary.)

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How to allow postfix to parse recipient address with percent signs in them?

I am having a mail delivered to a postfix mail server. That mail got the following address: else%2something@domain.com (It is basically a url encoded version of else+something@domain.com, which should be valid by RFC.) The sender’s mail server is being told to go way with this message: NOQUEUE: reject: RCPT from randostring.outbound.protection.outlook.com[…]: 454 4.7.1 <else%2something@domain.com>: Relay…

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I have a very simple /etc/network/interfaces file: auto lo iface lo inet loopback auto eth0 iface eth0 inet static address 192.168.5.5 netmask 255.255.255.0 network 192.168.5.0 gateway 192.168.5.100 iface usb0 inet static address 192.168.7.2 netmask 255.255.255.252 network 192.168.7.0 gateway 192.168.7.1 Where I assign a static IP address of 5.5 to eth0. However, upon boot, ifconfig shows…

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