Is it possible to determine the index of a bip32 address?I want to generate a BIP32 version number for Namecoin and other altcoinsIs disclosing an index used for generating BIP32 addresses insecure?C# How to determine if a bitcoin address was generated by a BIP32 pub key?additional document for BIP32BIP44 generation tool has Account xpubkey & bip32 xpubkey, what's the difference?BIP32 child addresses - anyway to corelate them?Golang how to derive address from bip32's xpubkey?General private/public key generationPossible attack vector of BIP32 HD walletWhy the normal mode exist in BIP32
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Is it possible to determine the index of a bip32 address?
I want to generate a BIP32 version number for Namecoin and other altcoinsIs disclosing an index used for generating BIP32 addresses insecure?C# How to determine if a bitcoin address was generated by a BIP32 pub key?additional document for BIP32BIP44 generation tool has Account xpubkey & bip32 xpubkey, what's the difference?BIP32 child addresses - anyway to corelate them?Golang how to derive address from bip32's xpubkey?General private/public key generationPossible attack vector of BIP32 HD walletWhy the normal mode exist in BIP32
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Let's assume that we only have the bip32 derived btc address, no private or public key. Is it possible to find out its index used for the bip32 generation?
bip-32-hd-wallets
asked Sep 14 at 7:33
cptprotocptproto
333 bronze badges
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Let's assume that we only have the bip32 derived btc address, no private or public key. Is it possible to find out its index used for the bip32 generation?
bip-32-hd-wallets
asked Sep 14 at 7:33
cptprotocptproto
333 bronze badges
add a comment
|
Let's assume that we only have the bip32 derived btc address, no private or public key. Is it possible to find out its index used for the bip32 generation?
bip-32-hd-wallets
asked Sep 14 at 7:33
cptprotocptproto
333 bronze badges
Let's assume that we only have the bip32 derived btc address, no private or public key. Is it possible to find out its index used for the bip32 generation?
bip-32-hd-wallets
bip-32-hd-wallets
asked Sep 14 at 7:33
cptprotocptproto
333 bronze badges
asked Sep 14 at 7:33
cptprotocptproto
333 bronze badges
asked Sep 14 at 7:33
cptprotocptproto
333 bronze badges
asked Sep 14 at 7:33
cptprotocptproto
333 bronze badges
asked Sep 14 at 7:33
cptprotocptproto
333 bronze badges
333 bronze badges
add a comment
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add a comment
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2 Answers
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BIP 32 does not derive addresses but derives a series of private keys from which corresponding addresses are then calculated. So there are multiple layers of obfuscations here that would make the index recalculation impossible. First, Bitcoin addresses do not reveal anything about the associated private key (ECC and hash protected) and second, the private key related to the address is in itself derived from the master private key through a function that hashes multiple inputs of which one of them is an index number. Since hash functions and ECC are one-way, there is no way to back calculate this data.
answered Sep 14 at 7:43
Ugam KamatUgam Kamat
5,1451 gold badge8 silver badges32 bronze badges
Awesome, thanks for the quick & in-depth reply!
– cptproto
Sep 14 at 8:03
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One of the privacy properties of BIP32 is that given two public keys (or even private keys), you cannot even tell whether they were generated from the same xpub or two distinct xpubs. This implies you certainly can't tell their index.
answered Sep 14 at 15:37
Pieter WuillePieter Wuille
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2 Answers
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2 Answers
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BIP 32 does not derive addresses but derives a series of private keys from which corresponding addresses are then calculated. So there are multiple layers of obfuscations here that would make the index recalculation impossible. First, Bitcoin addresses do not reveal anything about the associated private key (ECC and hash protected) and second, the private key related to the address is in itself derived from the master private key through a function that hashes multiple inputs of which one of them is an index number. Since hash functions and ECC are one-way, there is no way to back calculate this data.
answered Sep 14 at 7:43
Ugam KamatUgam Kamat
5,1451 gold badge8 silver badges32 bronze badges
Awesome, thanks for the quick & in-depth reply!
– cptproto
Sep 14 at 8:03
add a comment
|
BIP 32 does not derive addresses but derives a series of private keys from which corresponding addresses are then calculated. So there are multiple layers of obfuscations here that would make the index recalculation impossible. First, Bitcoin addresses do not reveal anything about the associated private key (ECC and hash protected) and second, the private key related to the address is in itself derived from the master private key through a function that hashes multiple inputs of which one of them is an index number. Since hash functions and ECC are one-way, there is no way to back calculate this data.
answered Sep 14 at 7:43
Ugam KamatUgam Kamat
5,1451 gold badge8 silver badges32 bronze badges
Awesome, thanks for the quick & in-depth reply!
– cptproto
Sep 14 at 8:03
add a comment
|
BIP 32 does not derive addresses but derives a series of private keys from which corresponding addresses are then calculated. So there are multiple layers of obfuscations here that would make the index recalculation impossible. First, Bitcoin addresses do not reveal anything about the associated private key (ECC and hash protected) and second, the private key related to the address is in itself derived from the master private key through a function that hashes multiple inputs of which one of them is an index number. Since hash functions and ECC are one-way, there is no way to back calculate this data.
answered Sep 14 at 7:43
Ugam KamatUgam Kamat
5,1451 gold badge8 silver badges32 bronze badges
BIP 32 does not derive addresses but derives a series of private keys from which corresponding addresses are then calculated. So there are multiple layers of obfuscations here that would make the index recalculation impossible. First, Bitcoin addresses do not reveal anything about the associated private key (ECC and hash protected) and second, the private key related to the address is in itself derived from the master private key through a function that hashes multiple inputs of which one of them is an index number. Since hash functions and ECC are one-way, there is no way to back calculate this data.
answered Sep 14 at 7:43
Ugam KamatUgam Kamat
5,1451 gold badge8 silver badges32 bronze badges
answered Sep 14 at 7:43
Ugam KamatUgam Kamat
5,1451 gold badge8 silver badges32 bronze badges
answered Sep 14 at 7:43
Ugam KamatUgam Kamat
5,1451 gold badge8 silver badges32 bronze badges
answered Sep 14 at 7:43
Ugam KamatUgam Kamat
5,1451 gold badge8 silver badges32 bronze badges
5,1451 gold badge8 silver badges32 bronze badges
Awesome, thanks for the quick & in-depth reply!
– cptproto
Sep 14 at 8:03
add a comment
|
Awesome, thanks for the quick & in-depth reply!
– cptproto
Sep 14 at 8:03
Awesome, thanks for the quick & in-depth reply!
– cptproto
Sep 14 at 8:03
Awesome, thanks for the quick & in-depth reply!
– cptproto
Sep 14 at 8:03
add a comment
|
One of the privacy properties of BIP32 is that given two public keys (or even private keys), you cannot even tell whether they were generated from the same xpub or two distinct xpubs. This implies you certainly can't tell their index.
answered Sep 14 at 15:37
Pieter WuillePieter Wuille
53.7k4 gold badges109 silver badges180 bronze badges
add a comment
|
One of the privacy properties of BIP32 is that given two public keys (or even private keys), you cannot even tell whether they were generated from the same xpub or two distinct xpubs. This implies you certainly can't tell their index.
answered Sep 14 at 15:37
Pieter WuillePieter Wuille
53.7k4 gold badges109 silver badges180 bronze badges
add a comment
|
One of the privacy properties of BIP32 is that given two public keys (or even private keys), you cannot even tell whether they were generated from the same xpub or two distinct xpubs. This implies you certainly can't tell their index.
answered Sep 14 at 15:37
Pieter WuillePieter Wuille
53.7k4 gold badges109 silver badges180 bronze badges
One of the privacy properties of BIP32 is that given two public keys (or even private keys), you cannot even tell whether they were generated from the same xpub or two distinct xpubs. This implies you certainly can't tell their index.
answered Sep 14 at 15:37
Pieter WuillePieter Wuille
53.7k4 gold badges109 silver badges180 bronze badges
answered Sep 14 at 15:37
Pieter WuillePieter Wuille
53.7k4 gold badges109 silver badges180 bronze badges
answered Sep 14 at 15:37
Pieter WuillePieter Wuille
53.7k4 gold badges109 silver badges180 bronze badges
answered Sep 14 at 15:37
Pieter WuillePieter Wuille
53.7k4 gold badges109 silver badges180 bronze badges
53.7k4 gold badges109 silver badges180 bronze badges
add a comment
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add a comment
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