Top Tweets for #SeedXOR
#COLDCARD Firmware Upgrade!
#SeedXOR
🌳 XOR from Seed Vault (select other parts of the XOR from seeds in the vault). Restore geographically distributed SeedXOR without physically bringing the parts together
📸 Seed XOR seeds can be scanned f/ SeedQR instead of typing them by hand
#Multisig
🔐 Option for unsorted multisig [multi(…)]
📝 JSON wrapped imports to provide custom `name` instead of the filename. Most useful for USB and NFC imports which have no filename
🔬 Descriptor checksum is no longer required upon import
⛓️💥 Create Airgapped (aka using CC as multisig coordinator) now works with BBQRs
#QR file Share
📁 Same as NFC file share, allows user to share any file from SD card via QR/BBQr
#Optimizations and speed
🍄 #libsecp256k1 bumped to latest 0.5.0 (point multiplication algorithm speed up, etc)
🐇⚡️ improvements in our signature grinding algo. Updated libsecp plus our optimizations yield 30% improvement in signing speed over previous version (15% in overall signing speed as signing is not the only part of it (validation, change checks, etc.))
#Security
🧐 Improve side-channel protection: libsecp256k1 context randomization now happens before each signing session
And much more!
![COLDCARDwallet's tweet photo. #COLDCARD Firmware Upgrade!
#SeedXOR
🌳 XOR from Seed Vault (select other parts of the XOR from seeds in the vault). Restore geographically distributed SeedXOR without physically bringing the parts together
📸 Seed XOR seeds can be scanned f/ SeedQR instead of typing them by hand
#Multisig
🔐 Option for unsorted multisig [multi(…)]
📝 JSON wrapped imports to provide custom `name` instead of the filename. Most useful for USB and NFC imports which have no filename
🔬 Descriptor checksum is no longer required upon import
⛓️💥 Create Airgapped (aka using CC as multisig coordinator) now works with BBQRs
#QR file Share
📁 Same as NFC file share, allows user to share any file from SD card via QR/BBQr
#Optimizations and speed
🍄 #libsecp256k1 bumped to latest 0.5.0 (point multiplication algorithm speed up, etc)
🐇⚡️ improvements in our signature grinding algo. Updated libsecp plus our optimizations yield 30% improvement in signing speed over previous version (15% in overall signing speed as signing is not the only part of it (validation, change checks, etc.))
#Security
🧐 Improve side-channel protection: libsecp256k1 context randomization now happens before each signing session
And much more!](https://pbs.twimg.com/media/GXTGQhKXYAAiaBn.jpg)
@COLDCARDwallet @Seardsalmon @PlebLab Well delivered.👊
#seedXOR under utilized & under appreciated in our humble opinion.
COLDCARD Mk4 Version 5.1.2
• SIGHASH Other Than ALL (ie PSBT based trading)
• #SeedXOR for 12 and 18 seed words
• Signing memory optimized for speed
• Docker repro build container improved
• and more
https://t.co/9FIpVETXBM
print this #SEEDXOR worksheet when calculating your own XOR by hand: https://t.co/H2JnJtmM3L
🔥 after use #JamesBondVibes
#SeedXOR is a really cool feature to help you secure your @BitcoinBackup with plausible deniability
And yes, it works with existing seeds too!
https://t.co/I0handtiJO
Went from #Hodling #bitcoin on an exchange then to storing it on a @Ledger nano x then to moving it to a @COLDCARDwallet mk4 and then to connecting our coldcard mk4 to our own running #node via @umbrel. Going to try #seedxor on the MK4 next. #everydaybetter
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