Multisignatur-Bitcoin-Wallets als Diebstahlschutz c't ...

HANSA Darknet Market

HANSA Darknet Market, Referral Links, Register, DNM, Referral, Code, bitcoin http://hansamkt3iph6sbb.onion/affiliate/230880
[link]

Hansa Market ONION

HANSA Market ONION URL
[link]

Hansa Market Guides & Tutorials

Hansa Market Guides & Tutorials
[link]

Bitcoin Magazine: CK walks you through how to set up, receive, send and recover a 2 of 3 multisig wallet with ColdCard, Ledger, and Trezor.

Bitcoin Magazine: CK walks you through how to set up, receive, send and recover a 2 of 3 multisig wallet with ColdCard, Ledger, and Trezor. submitted by rnvk to Bitcoin [link] [comments]

Bitcoin Magazine: CK walks you through how to set up, receive, send and recover a 2 of 3 multisig wallet with ColdCard, Ledger, and Trezor. (x-post from /r/Bitcoin)

Bitcoin Magazine: CK walks you through how to set up, receive, send and recover a 2 of 3 multisig wallet with ColdCard, Ledger, and Trezor. (x-post from /Bitcoin) submitted by ASICmachine to CryptoCurrencyClassic [link] [comments]

2-of-3 multisig inputs using Pay-to-Taproot (x-post from /r/Bitcoin)

2-of-3 multisig inputs using Pay-to-Taproot (x-post from /Bitcoin) submitted by ASICmachine to CryptoCurrencyClassic [link] [comments]

LilyWallet: Setting up and sending a 2-of-3 multisig tx with Matt (x-post from /r/Bitcoin)

LilyWallet: Setting up and sending a 2-of-3 multisig tx with Matt (x-post from /Bitcoin) submitted by ASICmachine to CryptoCurrencyClassic [link] [comments]

Multisig 2 of 3 : can I get my bitcoin if I loose 1 seed?

In order to spend I have to recreate a wallet and sign the transaction with 2 seeds. But how is possible to recreate the wallet with only 2 seeds ? Thank you
submitted by gammateta to Bitcoin [link] [comments]

#crypto #cryptonews #bitcoin @nocroom #Blockstream to Offer 2-of-3 bank-like multisig service

#crypto #cryptonews #bitcoin @nocroom #Blockstream to Offer 2-of-3 bank-like multisig service submitted by PooPoster1 to Cryptoandme [link] [comments]

Zack offers to be the arbiter for people who want to trade AE tokens using 2 of 3 multisig contracts on bitcoin. I can be the 3rd signature.

I am offering this service as an individual. I am not acting on behalf of Aeternity.
I know people are wanting to trade AE. The team has not yet delivered a trade-able token This is the best that I can do to help.
here is my address bitcoin 15C9sgbvyurrfioFXFqtxw7XNAE3opfBru here is my electrum bitcoin master pubkey xpub661MyMwAqRbcGZtCGtNmzobsXhwbJP4iWwR7DvnevbaVzvDVhVM7fSRFAKPCrhUtmSCxoamzeUubsji8zJTYA6uP4JxxR4ZtVQrsU2NHV8t
here is my ethereum address 0xB115fF254Db344B6FcE9a8543388D3eC6471902f
I charge either 0.08 bitcoin, or 5% of the traded amount. Whichever is bigger. I'm sorry I can't charge less. My time is very valuable right now, I need to focus on building Aeternity. Hopefully someone else will soon offer this same service at a better price. Be very careful who you trust.
You need to have a document that both of you sign before you lock the money into the 2 of 3. It is comma separated. It contains the price at which you traded, then the address that wants to buy AE, then the address that wants to sell AE, and the number of hours after the tokens are released when you want me to measure the price, and the portion of money in the multisig that way payed by the first address (this defines the margins of the contract). For example: 3000.00, 15C9sgbvyurrfioFXFqtxw7XNAE3opfBru,157agyXvyurrfioFXFqtxw7XNAE3opfBru, 5, 0.5
This document says that the trade occurred at the price of 3000 AE per bitcoin. That the 15C9... address was the one buying AE, that the 157a... address was selling AE, and that they want to trade at the price of AE at the time of 5 hours after the AE tokens are trade-able on an exchange, and that the first address contributed 0.5 bitcoin to the 2 of 3. The addresses in the document must be the same as the addresses that can be generated from the pubkeys in the 2 of 3 account.
If the document isn't formatted right, I will either refuse to help you, or charge extra.
I will look at the signed document to know how many of the locked up coins go to each of the participants.
Here is the same offer on my github, to show that I am who I say I am. https://github.com/zack-bitcoin/arbitration
submitted by agorism1337 to Aeternity [link] [comments]

Bitcoin Cash out of a 2 of 3 multisig HDM wallet

Does anyone know how to get Bitcoin Cash out of a 2 of 3 multisig HDM wallet? I had bitcoins in a multisig coinbase wallet holding 2 out of 3 keys, and than withdrew it after the fork. Is there a way to get the Bitcoin Cash at this point?
submitted by vaskojovanov to BitcoinABC [link] [comments]

Which lightweight wallets support 2-of-3 multisig? /r/Bitcoin

Which lightweight wallets support 2-of-3 multisig? /Bitcoin submitted by SimilarAdvantage to BitcoinAll [link] [comments]

Easiest P2SH escrow service? 2 of 3 multisig /r/Bitcoin

Easiest P2SH escrow service? 2 of 3 multisig /Bitcoin submitted by BitcoinAllBot to BitcoinAll [link] [comments]

Extra security with hardware wallets using 2-of-2 or 2-of-3 multisig /r/Bitcoin

Extra security with hardware wallets using 2-of-2 or 2-of-3 multisig /Bitcoin submitted by BitcoinAllBot to BitcoinAll [link] [comments]

Bitcoin Cash out of a 2 of 3 multisig HDM wallet /r/BitcoinABC

Bitcoin Cash out of a 2 of 3 multisig HDM wallet /BitcoinABC submitted by BitcoinAllBot to BitcoinAll [link] [comments]

Bitcoin mentioned around Reddit: Zack offers to be the arbiter for people who want to trade AE tokens using 2 of 3 multisig contracts on bitcoin. I can be the 3rd signature. /r/Aeternity

Bitcoin mentioned around Reddit: Zack offers to be the arbiter for people who want to trade AE tokens using 2 of 3 multisig contracts on bitcoin. I can be the 3rd signature. /Aeternity submitted by BitcoinAllBot to BitcoinAll [link] [comments]

Bitcoin mentioned around Reddit: Zack offers to be the arbiter for people who want to trade AE tokens using 2 of 3 multisig contracts on bitcoin. I can be the 3rd signature. /r/Aeternity

Bitcoin mentioned around Reddit: Zack offers to be the arbiter for people who want to trade AE tokens using 2 of 3 multisig contracts on bitcoin. I can be the 3rd signature. /Aeternity submitted by BitcoinAllBot to BitcoinAll [link] [comments]

I didn't use a multisig wallet for a 2 of 3 multisig transaction. How badly did I mess up? /r/Bitcoin

I didn't use a multisig wallet for a 2 of 3 multisig transaction. How badly did I mess up? /Bitcoin submitted by BitcoinAllBot to BitcoinAll [link] [comments]

Did I lose my money? Multisig problems. Thought I created a 1 of 2 multiSig key set, and sent some money to it. But the address starts with a 1 and shouldn't it start with a 3? /r/Bitcoin

Did I lose my money? Multisig problems. Thought I created a 1 of 2 multiSig key set, and sent some money to it. But the address starts with a 1 and shouldn't it start with a 3? /Bitcoin submitted by BitcoinAllBot to BitcoinAll [link] [comments]

2-of-3 Multisig Question /r/Bitcoin

2-of-3 Multisig Question /Bitcoin submitted by BitcoinAllBot to BitcoinAll [link] [comments]

Compact Multi-Signatures for Smaller Blockchains

Cryptology ePrint Archive: Report 2018/483
Date: 2018-06-10
Author(s): Dan Boneh, Manu Drijvers, Gregory Neven

Link to Paper


Abstract
We construct new multi-signature schemes that provide new functionality. Our schemes are designed to reduce the size of the Bitcoin blockchain, but are useful in many other settings where multi-signatures are needed. All our constructions support both signature compression and public-key aggregation. Hence, to verify that a number of parties signed a common message m, the verifier only needs a short multi-signature, a short aggregation of their public keys, and the message m. We give new constructions that are derived from Schnorr signatures and from BLS signatures. Our constructions are in the plain public key model, meaning that users do not need to prove knowledge or possession of their secret key.
In addition, we construct the first short accountable-subgroup multi-signature (ASM) scheme. An ASM scheme enables any subset S of a set of n parties to sign a message m so that a valid signature discloses which subset generated the signature (hence the subset S is accountable for signing m). We construct the first ASM scheme where signature size is only O(k) bits over the description of S, where k is the security parameter. Similarly, the aggregate public key is only O(k) bits, independent of n. The signing process is non-interactive. Our ASM scheme is very practical and well suited for compressing the data needed to spend funds from a t-of-n Multisig Bitcoin address, for any (polynomial size) t and n.

References
  1. Ahn, J.H., Green, M., Hohenberger, S.: Synchronized aggregate signatures: new definitions, constructions and applications. In: Al-Shaer, E., Keromytis, A.D., Shmatikov, V. (eds.) ACM CCS 10: 17th Conference on Computer and Communications Security. pp. 473–484. ACM Press, Chicago, Illinois, USA (Oct 4–8, 2010)
  2. Andresen, G.: m-of-n standard transactions. Bitcoin improvement proposal (BIP) 0011 (2011)
  3. Bagherzandi, A., Cheon, J.H., Jarecki, S.: Multisignatures secure under the discrete logarithm assumption and a generalized forking lemma. In: Ning, P., Syverson, P.F., Jha, S. (eds.) ACM CCS 08: 15th Conference on Computer and Communications Security. pp. 449–458. ACM Press, Alexandria, Virginia, USA (Oct 27–31, 2008)
  4. Bagherzandi, A., Jarecki, S.: Multisignatures using proofs of secret key possession, as secure as the Diffie-Hellman problem. In: Ostrovsky, R., Prisco, R.D., Visconti, I. (eds.) SCN 08: 6th International Conference on Security in Communication Networks. Lecture Notes in Computer Science, vol. 5229, pp. 218–235. Springer, Heidelberg, Germany, Amalfi, Italy (Sep 10–12, 2008)
  5. Bansarkhani, R.E., Sturm, J.: An efficient lattice-based multisignature scheme with applications to bitcoins. In: Foresti, S., Persiano, G. (eds.) CANS 16: 15th International Conference on Cryptology and Network Security. Lecture Notes in Computer Science, vol. 10052, pp. 140–155. Springer, Heidelberg, Germany, Milan, Italy (Nov 14–16, 2016)
  6. Barreto, P.S.L.M., Lynn, B., Scott, M.: On the selection of pairing-friendly groups. In: Matsui, M., Zuccherato, R.J. (eds.) SAC 2003: 10th Annual International Workshop on Selected Areas in Cryptography. Lecture Notes in Computer Science, vol. 3006, pp. 17–25. Springer, Heidelberg, Germany, Ottawa, Ontario, Canada (Aug 14–15, 2004)
  7. Bellare, M., Namprempre, C., Neven, G.: Unrestricted aggregate signatures. In: Arge, L., Cachin, C., Jurdzinski, T., Tarlecki, A. (eds.) ICALP 2007: 34th International Colloquium on Automata, Languages and Programming. Lecture Notes in Computer Science, vol. 4596, pp. 411–422. Springer, Heidelberg, Germany, Wroclaw, Poland (Jul 9–13, 2007)
  8. Bellare, M., Namprempre, C., Pointcheval, D., Semanko, M.: The one-more-RSAinversion problems and the security of Chaum’s blind signature scheme. Journal of Cryptology 16(3), 185–215 (Jun 2003)
  9. Bellare, M., Neven, G.: Multi-signatures in the plain public-key model and a general forking lemma. In: Juels, A., Wright, R.N., Vimercati, S. (eds.) ACM CCS 06: 13th Conference on Computer and Communications Security. pp. 390–399. ACM Press, Alexandria, Virginia, USA (Oct 30 – Nov 3, 2006)
  10. Boldyreva, A.: Threshold signatures, multisignatures and blind signatures based on the gap-Diffie-Hellman-group signature scheme. In: Desmedt, Y. (ed.) PKC 2003: 6th International Workshop on Theory and Practice in Public Key Cryptography. Lecture Notes in Computer Science, vol. 2567, pp. 31–46. Springer, Heidelberg, Germany, Miami, FL, USA (Jan 6–8, 2003)
  11. Boldyreva, A., Gentry, C., O’Neill, A., Yum, D.H.: Ordered multisignatures and identity-based sequential aggregate signatures, with applications to secure routing. In: Ning, P., di Vimercati, S.D.C., Syverson, P.F. (eds.) ACM CCS 07: 14th Conference on Computer and Communications Security. pp. 276–285. ACM Press, Alexandria, Virginia, USA (Oct 28–31, 2007)
  12. Boneh, D., Gentry, C., Lynn, B., Shacham, H.: Aggregate and verifiably encrypted signatures from bilinear maps. In: Biham, E. (ed.) Advances in Cryptology – EUROCRYPT 2003. Lecture Notes in Computer Science, vol. 2656, pp. 416–432. Springer, Heidelberg, Germany, Warsaw, Poland (May 4–8, 2003)
  13. Boneh, D., Lynn, B., Shacham, H.: Short signatures from the Weil pairing. In: Boyd, C. (ed.) Advances in Cryptology – ASIACRYPT 2001. Lecture Notes in Computer Science, vol. 2248, pp. 514–532. Springer, Heidelberg, Germany, Gold Coast, Australia (Dec 9–13, 2001)
  14. Brogle, K., Goldberg, S., Reyzin, L.: Sequential aggregate signatures with lazy verification from trapdoor permutations - (extended abstract). In: Wang, X., Sako, K. (eds.) Advances in Cryptology – ASIACRYPT 2012. Lecture Notes in Computer Science, vol. 7658, pp. 644–662. Springer, Heidelberg, Germany, Beijing, China (Dec 2–6, 2012)
  15. Budroni, A., Pintore, F.: Efficient hash maps to G2 on BLS curves. Cryptology ePrint Archive, Report 2017/419 (2017), http://eprint.iacr.org/2017/419
  16. Burmester, M., Desmedt, Y., Doi, H., Mambo, M., Okamoto, E., Tada, M., Yoshifuji, Y.: A structured ElGamal-type multisignature scheme. In: Imai, H., Zheng, Y. (eds.) PKC 2000: 3rd International Workshop on Theory and Practice in Public Key Cryptography. Lecture Notes in Computer Science, vol. 1751, pp. 466–483. Springer, Heidelberg, Germany, Melbourne, Victoria, Australia (Jan 18–20, 2000)
  17. Castelluccia, C., Jarecki, S., Kim, J., Tsudik, G.: A robust multisignatures scheme with applications to acknowledgment aggregation. In: Blundo, C., Cimato, S. (eds.) SCN 04: 4th International Conference on Security in Communication Networks. Lecture Notes in Computer Science, vol. 3352, pp. 193–207. Springer, Heidelberg, Germany, Amalfi, Italy (Sep 8–10, 2005)
  18. Certicom Research: Sec 2: Recommended elliptic curve domain parameters. Tech. rep., Certicom Research (2010)
  19. Chang, C.C., Leu, J.J., Huang, P.C., Lee, W.B.: A scheme for obtaining a message from the digital multisignature. In: Imai, H., Zheng, Y. (eds.) PKC’98: 1st International Workshop on Theory and Practice in Public Key Cryptography. Lecture Notes in Computer Science, vol. 1431, pp. 154–163. Springer, Heidelberg, Germany, Pacifico Yokohama, Japan (Feb 5–6, 1998)
  20. Coron, J.S., Naccache, D.: Boneh et al.’s k-element aggregate extraction assumption is equivalent to the Diffie-Hellman assumption. In: Laih, C.S. (ed.) Advances in Cryptology – ASIACRYPT 2003. Lecture Notes in Computer Science, vol. 2894, pp. 392–397. Springer, Heidelberg, Germany, Taipei, Taiwan (Nov 30 – Dec 4, 2003)
  21. Drijvers, M., EdalatNejad, K., Ford, B., Neven, G.: Okamoto beats Schnorr: On the provable security of multi-signatures. Cryptology ePrint Archive, Report 2018/417 (2018), https://eprint.iacr.org/2018/417
  22. Fuentes-Casta˜neda, L., Knapp, E., Rodr´ıguez-Henr´ıquez, F.: Faster hashing to ð2. In: Miri, A., Vaudenay, S. (eds.) SAC 2011: 18th Annual International Workshop on Selected Areas in Cryptography. Lecture Notes in Computer Science, vol. 7118, pp. 412–430. Springer, Heidelberg, Germany, Toronto, Ontario, Canada (Aug 11–12, 2012)
  23. Gentry, C., O’Neill, A., Reyzin, L.: A unified framework for trapdoor-permutationbased sequential aggregate signatures. In: Abdalla, M., Dahab, R. (eds.) PKC 2018: 21st International Conference on Theory and Practice of Public Key Cryptography, Part II. Lecture Notes in Computer Science, vol. 10770, pp. 34–57. Springer, Heidelberg, Germany, Rio de Janeiro, Brazil (Mar 25–29, 2018)
  24. Gentry, C., Ramzan, Z.: Identity-based aggregate signatures. In: Yung, M., Dodis, Y., Kiayias, A., Malkin, T. (eds.) PKC 2006: 9th International Conference on Theory and Practice of Public Key Cryptography. Lecture Notes in Computer Science, vol. 3958, pp. 257–273. Springer, Heidelberg, Germany, New York, NY, USA (Apr 24–26, 2006)
  25. Hardjono, T., Zheng, Y.: A practical digital multisignature scheme based on discrete logarithms. In: Seberry, J., Zheng, Y. (eds.) Advances in Cryptology – AUSCRYPT’92. Lecture Notes in Computer Science, vol. 718, pp. 122–132. Springer, Heidelberg, Germany, Gold Coast, Queensland, Australia (Dec 13–16, 1993)
  26. Harn, L.: Group-oriented (t, n) threshold digital signature scheme and digital multisignature. IEE Proceedings-Computers and Digital Techniques 141(5), 307–313 (1994)
  27. Horster, P., Michels, M., Petersen, H.: Meta-multisignature schemes based on the discrete logarithm problem. In: Information Securitythe Next Decade. pp. 128–142. Springer (1995)
  28. Itakura, K., Nakamura, K.: A public-key cryptosystem suitable for digital multisignatures. Tech. rep., NEC Research and Development (1983)
  29. Komano, Y., Ohta, K., Shimbo, A., Kawamura, S.: Formal security model of multisignatures. In: Katsikas, S.K., Lopez, J., Backes, M., Gritzalis, S., Preneel, B. (eds.) ISC 2006: 9th International Conference on Information Security. Lecture Notes in Computer Science, vol. 4176, pp. 146–160. Springer, Heidelberg, Germany, Samos Island, Greece (Aug 30 – Sep 2, 2006)
  30. Le, D.P., Bonnecaze, A., Gabillon, A.: Multisignatures as secure as the DiffieHellman problem in the plain public-key model. In: Shacham, H., Waters, B. (eds.) PAIRING 2009: 3rd International Conference on Pairing-based Cryptography. Lecture Notes in Computer Science, vol. 5671, pp. 35–51. Springer, Heidelberg, Germany, Palo Alto, CA, USA (Aug 12–14, 2009)
  31. Li, C.M., Hwang, T., Lee, N.Y.: Threshold-multisignature schemes where suspected forgery implies traceability of adversarial shareholders. In: Santis, A.D. (ed.) Advances in Cryptology – EUROCRYPT’94. Lecture Notes in Computer Science, vol. 950, pp. 194–204. Springer, Heidelberg, Germany, Perugia, Italy (May 9–12, 1995)
  32. Lu, S., Ostrovsky, R., Sahai, A., Shacham, H., Waters, B.: Sequential aggregate signatures and multisignatures without random oracles. In: Vaudenay, S. (ed.) Advances in Cryptology – EUROCRYPT 2006. Lecture Notes in Computer Science, vol. 4004, pp. 465–485. Springer, Heidelberg, Germany, St. Petersburg, Russia (May 28 – Jun 1, 2006)
  33. Lysyanskaya, A., Micali, S., Reyzin, L., Shacham, H.: Sequential aggregate signatures from trapdoor permutations. In: Cachin, C., Camenisch, J. (eds.) Advances in Cryptology – EUROCRYPT 2004. Lecture Notes in Computer Science, vol. 3027, pp. 74–90. Springer, Heidelberg, Germany, Interlaken, Switzerland (May 2–6, 2004)
  34. Ma, C., Weng, J., Li, Y., Deng, R.: Efficient discrete logarithm based multisignature scheme in the plain public key model. Designs, Codes and Cryptography 54(2), 121–133 (2010)
  35. Maxwell, G., Poelstra, A., Seurin, Y., Wuille, P.: Simple schnorr multi-signatures with applications to bitcoin. Cryptology ePrint Archive, Report 2018/068 (2018), https://eprint.iacr.org/2018/068/20180118:124757
  36. Maxwell, G., Poelstra, A., Seurin, Y., Wuille, P.: Simple schnorr multi-signatures with applications to bitcoin. Cryptology ePrint Archive, Report 2018/068 (2018), https://eprint.iacr.org/2018/068/20180520:191909
  37. Merkle, R.C.: A digital signature based on a conventional encryption function. In: Pomerance, C. (ed.) Advances in Cryptology – CRYPTO’87. Lecture Notes in Computer Science, vol. 293, pp. 369–378. Springer, Heidelberg, Germany, Santa Barbara, CA, USA (Aug 16–20, 1988)
  38. Micali, S., Ohta, K., Reyzin, L.: Accountable-subgroup multisignatures: Extended abstract. In: ACM CCS 01: 8th Conference on Computer and Communications Security. pp. 245–254. ACM Press, Philadelphia, PA, USA (Nov 5–8, 2001)
  39. Michels, M., Horster, P.: On the risk of disruption in several multiparty signature schemes. In: International Conference on the Theory and Application of Cryptology and Information Security. pp. 334–345. Springer (1996)
  40. Nakamoto, S.: Bitcoin: A peer-to-peer electronic cash system (2008), http://bitcoin.org/bitcoin.pdf
  41. Neven, G.: Efficient sequential aggregate signed data. In: Smart, N.P. (ed.) Advances in Cryptology – EUROCRYPT 2008. Lecture Notes in Computer Science, vol. 4965, pp. 52–69. Springer, Heidelberg, Germany, Istanbul, Turkey (Apr 13–17, 2008)
  42. Ohta, K., Okamoto, T.: A digital multisignature scheme based on the Fiat-Shamir scheme. In: Imai, H., Rivest, R.L., Matsumoto, T. (eds.) Advances in Cryptology – ASIACRYPT’91. Lecture Notes in Computer Science, vol. 739, pp. 139–148. Springer, Heidelberg, Germany, Fujiyoshida, Japan (Nov 11–14, 1993)
  43. Ohta, K., Okamoto, T.: Multi-signature schemes secure against active insider attacks. IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences 82(1), 21–31 (1999)
  44. Okamoto, T.: Provably secure and practical identification schemes and corresponding signature schemes. In: Brickell, E.F. (ed.) Advances in Cryptology – CRYPTO’92. Lecture Notes in Computer Science, vol. 740, pp. 31–53. Springer, Heidelberg, Germany, Santa Barbara, CA, USA (Aug 16–20, 1993)
  45. Park, S., Park, S., Kim, K., Won, D.: Two efficient RSA multisignature schemes. In: Han, Y., Okamoto, T., Qing, S. (eds.) ICICS 97: 1st International Conference on Information and Communication Security. Lecture Notes in Computer Science, vol. 1334, pp. 217–222. Springer, Heidelberg, Germany, Beijing, China (Nov 11–14, 1997)
  46. Pointcheval, D., Stern, J.: Security arguments for digital signatures and blind signatures. Journal of Cryptology 13(3), 361–396 (2000)
  47. Ristenpart, T., Yilek, S.: The power of proofs-of-possession: Securing multiparty signatures against rogue-key attacks. In: Naor, M. (ed.) Advances in Cryptology – EUROCRYPT 2007. Lecture Notes in Computer Science, vol. 4515, pp. 228–245. Springer, Heidelberg, Germany, Barcelona, Spain (May 20–24, 2007)
  48. Schnorr, C.P.: Efficient signature generation by smart cards. Journal of Cryptology 4(3), 161–174 (1991)
  49. Scott, M., Benger, N., Charlemagne, M., Perez, L.J.D., Kachisa, E.J.: Fast hashing to g2 on pairing-friendly curves. In: Shacham, H., Waters, B. (eds.) PAIRING 2009: 3rd International Conference on Pairing-based Cryptography. Lecture Notes in Computer Science, vol. 5671, pp. 102–113. Springer, Heidelberg, Germany, Palo Alto, CA, USA (Aug 12–14, 2009)
submitted by dj-gutz to myrXiv [link] [comments]

Claiming Bitcoin airdrops from a multisig wallet using two Trezors?

Let's say I have a 2-of-3 multisig Bitcoin wallet in Electrum that uses three Trezors. How would I go about claiming the airdropped coins from one of these Bitcoin forks while signing my transaction with Trezors?
Would it be possible to generate a Bitcoin transaction in Electrum, edit it by hand to be a Bitcoin Gold transaction, sign it in electrum via Trezor, and broadcast on the Bitcoin Gold network?
submitted by charlespax to TREZOR [link] [comments]

question about multisig wallets

Apologies if this is the wrong place to post questions, and if this is a silly question:
I'd like to create a 2 of 3 multisig bitcoin wallet and I'm thinking of storing one of the private keys on a hardware wallet like the Ledger Nano S, a second on a paper wallet, and a third on a software wallet that allows multisig accounts such as Copay or Armory.
My question is, if say in 5 or 10 years, Copay or Armory are no longer around, can I still restore my multisig wallet? Can I just restore it to another software wallet that supports multisig? Creating and restoring single private keys from seed phrases makes sense to me, but I haven't seen anything about restoring multisig wallets.
submitted by kerthan to Bitcoin [link] [comments]

Thought on Reddit's Secret Santa gift exchange

I was thinking about signing up for the summer gift exchange this year, I've never tried one on Reddit before. However, all of the comments on the post are about how users got burned in the past and didn't receive gifts. It would be awesome if there was a gift exchange that incorporated 2 of 3 multisig bitcoin addresses, so that money could be held in escrow until both gifts were received. We should set something up for the holidays in /bitcoin
submitted by your_bff to Bitcoin [link] [comments]

P2P Bitcoin exchange Hodl Hodl announces Lightning support

P2P Bitcoin exchange Hodl Hodl announces Lightning support submitted by artur97 to Bitcoin [link] [comments]

EASY Multi Sig! How to set up and spend from a 2 of 3 ... Bitcoin: How to Create a Multi-Sig Wallet with Caravan By Unchained Capital 10. How to Setup COLDCARD Air-Gap Multisig Wallet and use with Electrum Multisig - Coldcard and Fully Noded 2 Ryan Singer from CryptoCorp reveals their Bitcoin MultiSig features

r/Bitcoin: A community dedicated to Bitcoin, the currency of the Internet. Bitcoin is a distributed, worldwide, decentralized digital money … Press J to jump to the feed. Press question mark to learn the rest of the keyboard shortcuts. r/Bitcoin. log in sign up. User account menu. 7. 2-of-3 multisig with passphrase? Close. 7. Posted by. u/Teatflight. redditor for 3 months. 1 month ago. 2-of ... Casa's basic multisig setup is 2 of 3. This creates a 3-part bitcoin private key, with 2 parts required to spend funds. Basic multisig is included in all Gold memberships. We recommend basic multisig for individuals holding small to medium amounts of BTC. For a full rundown of the product, read our blog post on Basic Mutisig 2-of-3's release. With Basic Multisig, you’ll have three keys ... Generate a multisig address: Gather (or generate) 3 bitcoin addresses, on whichever machines will be participating, using getnewaddress or getaccountaddress RPC commands (or copy and paste from the GUI). Get their public keys using the validateaddress RPC command 3 times. Then create a 2-of-3 multisig address using addmultisigaddress; e.g. The term multisig stands for multi-signature and the following post will teach anyone how to create a 2 of 2 multisig wallet. Years ago cryptocurrency developers came up with an idea to increase ... 2 keys of 2: Two-factor authentication for your money. You keep one key on your computer and another key on your phone. Whenever you want to spend money, you have to use both. 2 keys of 3: Trustless arbitration or Bitcoin escrow. Someone wants to buy a product from a stranger on the internet, but cannot trust him. The buyer and seller agree on ...

[index] [19836] [35978] [49723] [15722] [10238] [28703] [32015] [46041] [6581] [11665]

EASY Multi Sig! How to set up and spend from a 2 of 3 ...

In this guide you will learn how to setup a Bitcoin Air-Gap 2-of-3 Multisig Wallet and import into Electrum. The next video #11 (https: ... This would be a 2 of 3 wallet. The use cases for multisig is enormous. In this interview with Ryan Singer, we discover one of the very first, easy to use implementations of multisig and how you ... Step 2: Paste the address or addresses you want to send to. Step 3: Set you fee rate (Sats/Byte). Step 4: Input the amount you wish to send of click max to send your entire wallet balance. CK walks you through how to set up, receive, send and recover a 2 of 3 multisig wallet with ColdCard, Ledger, and Trezor. Step 1: Download Lily Wallet at Kev... In this video you will learn how to sign your Bitcoin 2-of-3 Multisig transaction created on video #10 (https://youtu.be/OMpZ5heLsRg) using PSBT with COLDCARD and ...

#