How does the privatekeyfinder.io website work?

[neo_93]

Who knows how this site privatekeyfinder.io generates the private key for the addresses?

I saw that he has a javascript file on his website called privatekeyfinder.js?v=1.0.5. Anyone who has knowledge of javascript, can you tell if this javascript would be able to obtain the private key from the address?

[Quickseller]

It generates addresses on the fly.

As an example, on https://privatekeyfinder.io/private-keys/bitcoin/ which is the first page for bitcoin private keys, it calculates the addresses for the private keys from the hex value 1 through 3b, and will query a database containing transactions in various blockchains to get the total received for the addresses.

When a page is accessed, the addresses of 60 consecutive private keys will be calculated, depending on the page number. The costs associated with doing this for a single page are very low.


It is not possible to calculate the private key from an address. The process of calculating the address from a private key involves using a hashing function, which is a one-way function, and cannot be reversed.

[Cricktor]

Who knows how this site privatekeyfinder.io generates the private key for the addresses?

If you ask your question this way, you very likely don't quite understand how Bitcoin works and how a public address is derived from a private key via an intermediary public key.

The private keys are simply enumerated as Quickseller already said and from those private keys the public addresses are computed. In this direction, from private key via (hidden) public key to public address it's computationally not really expensive. From public address to private key is basically impossible because we don't have enough energy nor time to compute it.

Spend some time at https://learnmeabitcoin.com and learn the basics. It's mostly a joy there and well presented!

[BitMaxz]

Who knows how this site privatekeyfinder.io generates the private key for the addresses?

I had never heard of this site before so we do not know what is the purpose of using their tools It seems it's just a database with a collection of keys.

I saw that he has a javascript file on his website called privatekeyfinder.js?v=1.0.5. Anyone who has knowledge of javascript, can you tell if this javascript would be able to obtain the private key from the address?

There's no way to get the private key from a public address you will never generate or derive the private key from the public key.
Think deeply if this tool works then expect for the whole crypto collapse.

[neo_93]

It generates addresses on the fly.

As an example, on https://privatekeyfinder.io/private-keys/bitcoin/ which is the first page for bitcoin private keys, it calculates the addresses for the private keys from the hex value 1 through 3b, and will query a database containing transactions in various blockchains to get the total received for the addresses.

When a page is accessed, the addresses of 60 consecutive private keys will be calculated, depending on the page number. The costs associated with doing this for a single page are very low.


It is not possible to calculate the private key from an address. The process of calculating the address from a private key involves using a hashing function, which is a one-way function, and cannot be reversed.

I understood this, the balance part is consulted in the blockchain api at the endpoint https://blockchain.info/balance?active passing the page addresses. What I still don't understand is how it manages to display these private keys of these addresses so quickly. I believe it is not via a database, because it would not be possible to record all the private keys and their addresses in a database and return this information so fast.

[Quickseller]

I understood this, the balance part is consulted in the blockchain api at the endpoint https://blockchain.info/balance?active passing the page addresses. What I still don't understand is how it manages to display these private keys of these addresses so quickly. I believe it is not via a database, because it would not be possible to record all the private keys and their addresses in a database and return this information so fast.

The website starts with the private key, not the address.

The website will start with the hex representation of a number, and will calculate the address based on that number being the private key.

Look at the below function that prints the SHA hash of 60 numbers:

Code:

import hashlib
import time

def print_sha_hashes(page):
    start_time = time.time()
    
    start_number = page * 60 + 1
    
    for i in range(60):
        number = start_number + i
        hex_value = hex(number)[2:].zfill(64)  # Convert number to 64-digit hexadecimal string
        
        sha_hash = hashlib.sha256(hex_value.encode()).hexdigest()
        
        print(f"Number: {number}, Hex Value: {hex_value}, SHA Hash: {sha_hash}")
    
    end_time = time.time()
    execution_time = end_time - start_time
    
    print(f"\nExecution time: {execution_time:.6f} seconds")


print_sha_hashes(0)

Code:

Number: 1, Hex Value: 0000000000000000000000000000000000000000000000000000000000000001, SHA Hash: c386d8e8d07342f2e39e189c8e6c57bb205bb373fe4e3a6f69404a8bb767b417
Number: 2, Hex Value: 0000000000000000000000000000000000000000000000000000000000000002, SHA Hash: 68e4d75d23e31bd23f43266f769567b2588d9f3d3010fa7cacae7efd6f5ce0ad
Number: 3, Hex Value: 0000000000000000000000000000000000000000000000000000000000000003, SHA Hash: ac7edb97166f7d682720aca18fea15cdd5d15242dad38297a48633a806236c4f
Number: 4, Hex Value: 0000000000000000000000000000000000000000000000000000000000000004, SHA Hash: 1fb497d126f59b0448178d04f0a33ca8ff9460874d90018821d3f5872bd9a735
Number: 5, Hex Value: 0000000000000000000000000000000000000000000000000000000000000005, SHA Hash: f3ce024b388cdb11d0fa5f9f6981cef239040b17b67ca2dd77847e15bce5bc2f
Number: 6, Hex Value: 0000000000000000000000000000000000000000000000000000000000000006, SHA Hash: 7908e999d34f7da8aa441b81bff818a7c89d7dbcb754def7bb3f70744c557b11
Number: 7, Hex Value: 0000000000000000000000000000000000000000000000000000000000000007, SHA Hash: 77982011336d915790e77d8301a52da5654857a870de65fb16d0cb1a44820b9c
Number: 8, Hex Value: 0000000000000000000000000000000000000000000000000000000000000008, SHA Hash: db5a1efda6e8c581987be91c9a48b94ee39bd299b34c1d781ff1f6774e81503e
Number: 9, Hex Value: 0000000000000000000000000000000000000000000000000000000000000009, SHA Hash: 1da5073ab17a3392066ca1b3049c07d043f374bcd69dc68362c21f98e3f6db8c
Number: 10, Hex Value: 000000000000000000000000000000000000000000000000000000000000000a, SHA Hash: 20de310de6a82c906fbd35cc837c81ececd066e4ccb63353926f8cf629e9006f
Number: 11, Hex Value: 000000000000000000000000000000000000000000000000000000000000000b, SHA Hash: 2307f77f4efd7b73db57a22478647fcfa9ad6a6a89a4b8ba6e73544b77d7f6d3
Number: 12, Hex Value: 000000000000000000000000000000000000000000000000000000000000000c, SHA Hash: c9e3c1590462415e49831a0fcb56701686e745bb936f5946dfb01a9075f2a6df
Number: 13, Hex Value: 000000000000000000000000000000000000000000000000000000000000000d, SHA Hash: 6cac6fb7b1d694a47536b6c7d7cf7843cc3526b63b9cbc85f73ab9af611bd03a
Number: 14, Hex Value: 000000000000000000000000000000000000000000000000000000000000000e, SHA Hash: 6e136befd04b2b460a0cd329a016e7935a7584c68a64c0964be379f96429e2be
Number: 15, Hex Value: 000000000000000000000000000000000000000000000000000000000000000f, SHA Hash: 3a80cd661828bbcbc352b7253aa4913d66bb9fbf0e86c80d72635b64cfb7a112
Number: 16, Hex Value: 0000000000000000000000000000000000000000000000000000000000000010, SHA Hash: 2db2ff724c9b7f7bcd175e6f6bd52e5af3a9ceb1ec98375bdf96c67b5e3d3f72
Number: 17, Hex Value: 0000000000000000000000000000000000000000000000000000000000000011, SHA Hash: e9ec13ffcb3917b042d999a0b6753258669fdf3700b529dcc11a4f5ee8a927a0
Number: 18, Hex Value: 0000000000000000000000000000000000000000000000000000000000000012, SHA Hash: b23a54d1c46d853b8c19fa6ea951f35ebb46af286b793d73fa45b02574c7243a
Number: 19, Hex Value: 0000000000000000000000000000000000000000000000000000000000000013, SHA Hash: 983d8d5716ccf6e6e8642c6ace259eabced2697be23406cce4b848b7159cde74
Number: 20, Hex Value: 0000000000000000000000000000000000000000000000000000000000000014, SHA Hash: 087bee4b25350ee462142f6270ae6f453ee5bcbd2d7ccb5f0a2223602897c088
Number: 21, Hex Value: 0000000000000000000000000000000000000000000000000000000000000015, SHA Hash: 3c02342f671786b080e65cda12266248d6565a74e61c701cd0255111da148489
Number: 22, Hex Value: 0000000000000000000000000000000000000000000000000000000000000016, SHA Hash: d785a54aabc39a9eef45b3e38ac0e598d44b45756e9a610ef851f77aa324e895
Number: 23, Hex Value: 0000000000000000000000000000000000000000000000000000000000000017, SHA Hash: d02c3b01349ac19c5f08219c9231b0ce7ad4ecb03ef008a9c228a65759eb89b8
Number: 24, Hex Value: 0000000000000000000000000000000000000000000000000000000000000018, SHA Hash: d8707b923173c07643a1dc6e640f87dbdb22613648217abc8004574411f62b9d
Number: 25, Hex Value: 0000000000000000000000000000000000000000000000000000000000000019, SHA Hash: 094e2c66cbe2d084d9e1acba523f9c737d84db8b413c9625a2f29fe90639bad0
Number: 26, Hex Value: 000000000000000000000000000000000000000000000000000000000000001a, SHA Hash: 7eeff6966e9270ad30801318e59df577d335aeb5c603a03eaa910201f79e77a7
Number: 27, Hex Value: 000000000000000000000000000000000000000000000000000000000000001b, SHA Hash: 6841d4809ddd8364456b40123b0135806998081c92e4f833af56bc19003005c4
Number: 28, Hex Value: 000000000000000000000000000000000000000000000000000000000000001c, SHA Hash: 1c1af531d4845f1d73b06d69451008a254426d6a84919238a05c77de5f7824f9
Number: 29, Hex Value: 000000000000000000000000000000000000000000000000000000000000001d, SHA Hash: d70263a76849be1187728e413a6fe67d7cdd52d084423901a3e1f4d3f850bc2f
Number: 30, Hex Value: 000000000000000000000000000000000000000000000000000000000000001e, SHA Hash: 83426ed6d7305298bccd709f5a430d5c82356c3205d72b836087968fd8bbb9aa
Number: 31, Hex Value: 000000000000000000000000000000000000000000000000000000000000001f, SHA Hash: d282932b1fdef0787196b67cd318fc9546e01a3929d366fb3a4741478c45e4be
Number: 32, Hex Value: 0000000000000000000000000000000000000000000000000000000000000020, SHA Hash: e9019e823952019da872ad7d73708876f4490ba86a8d5d040c264b11b5feb881
Number: 33, Hex Value: 0000000000000000000000000000000000000000000000000000000000000021, SHA Hash: d513972e27b822b76c6aeb654a4a6fa1c28593a38cdc62692314d5c3973ce6d8
Number: 34, Hex Value: 0000000000000000000000000000000000000000000000000000000000000022, SHA Hash: 4e6233ba6fc3917f250eccb0e3b8dbf6c7035da15af01e2064c0ca9be9799a66
Number: 35, Hex Value: 0000000000000000000000000000000000000000000000000000000000000023, SHA Hash: 1ca9ca3b178461811d537baeb4669a5ecaa4d0f15075b0b695a406f4b5d6e80e
Number: 36, Hex Value: 0000000000000000000000000000000000000000000000000000000000000024, SHA Hash: 55fa8ece78cfff15ec5c8b8dc6a54d498c6ad5b67ca6d28855cb9ea87329f543
Number: 37, Hex Value: 0000000000000000000000000000000000000000000000000000000000000025, SHA Hash: 9c7f3aa0075af1b660381a12493b22464d1690f3908d5371db0e5998ec72711b
Number: 38, Hex Value: 0000000000000000000000000000000000000000000000000000000000000026, SHA Hash: 7fb2de2c94cba16f6120c318fa84a22d51215f770ccd40e06b89f2fbf9d3fc25
Number: 39, Hex Value: 0000000000000000000000000000000000000000000000000000000000000027, SHA Hash: fa27334831692fc07ca1cf81e8ebbc585eb7f6ef06732bb97ea19cd3e29143e5
Number: 40, Hex Value: 0000000000000000000000000000000000000000000000000000000000000028, SHA Hash: 7673e529930d3d67ed30888e1ecc1a4db1bcfd56b55cad81ce963437af395abd
Number: 41, Hex Value: 0000000000000000000000000000000000000000000000000000000000000029, SHA Hash: aad3988244df8219f78a9fd16999f6d0ec862ef95da4c6841aad1fbc404cd229
Number: 42, Hex Value: 000000000000000000000000000000000000000000000000000000000000002a, SHA Hash: 9cf49eeaaa45bd96bd47cf2cfeaeb0df96b82897144c8db521cc1330cc495761
Number: 43, Hex Value: 000000000000000000000000000000000000000000000000000000000000002b, SHA Hash: ca0af82b7371f98d130b06157f3f265fe23a090070ba4d4b0f597efd00c8db3e
Number: 44, Hex Value: 000000000000000000000000000000000000000000000000000000000000002c, SHA Hash: 7bdeaebb086d0db991b7edf40221b35d9edc7068593528560c95cf0c403928b2
Number: 45, Hex Value: 000000000000000000000000000000000000000000000000000000000000002d, SHA Hash: 71de674921d8ea8fd3ba1abdb5f1ba504941d6095a37638d5be15c5a70d17469
Number: 46, Hex Value: 000000000000000000000000000000000000000000000000000000000000002e, SHA Hash: aba0bb46f05d94c27e3a2a0ce95671d1d5efdd21b128dedfc9293a8f9f8b4ff3
Number: 47, Hex Value: 000000000000000000000000000000000000000000000000000000000000002f, SHA Hash: 04d8cc205b85289843a4bf05e7c48ae646b1a0df90470b0fd03f1579487dc25d
Number: 48, Hex Value: 0000000000000000000000000000000000000000000000000000000000000030, SHA Hash: 8da82336d5f76b112afc9f8d9c2d3f098445b98496b682cac2318ea465de9c29
Number: 49, Hex Value: 0000000000000000000000000000000000000000000000000000000000000031, SHA Hash: 41b7b7675f7199195a6f49862f87b4587ffeaf7437abe989853e1b366ced5856
Number: 50, Hex Value: 0000000000000000000000000000000000000000000000000000000000000032, SHA Hash: 7f6559d1d398dddee0f5682abcd7559a379bb5c871c2a8801f62d1e9a43b2b29
Number: 51, Hex Value: 0000000000000000000000000000000000000000000000000000000000000033, SHA Hash: 91e3a19c01e28046d97aed51648f9156700acf805a63d1f659629e47974e403e
Number: 52, Hex Value: 0000000000000000000000000000000000000000000000000000000000000034, SHA Hash: 1e45a68b9086981e9cc8d1b972acfb24cb4f58ce8bad3e631091c75828cdafce
Number: 53, Hex Value: 0000000000000000000000000000000000000000000000000000000000000035, SHA Hash: e00ea15d5da7615f6e8cb29bbb3bfaa9e787b90cfe1e3149432f1983ecc50075
Number: 54, Hex Value: 0000000000000000000000000000000000000000000000000000000000000036, SHA Hash: edaa1004b94bb526a61310aeba46084eab3cbc1a4bb2be18f0b0f9c7cd1d67c8
Number: 55, Hex Value: 0000000000000000000000000000000000000000000000000000000000000037, SHA Hash: c5368b8592df1a03a171b6031f5223668366b5eeef5540638566e6ee5636c1d2
Number: 56, Hex Value: 0000000000000000000000000000000000000000000000000000000000000038, SHA Hash: 73eb5fe6034e7055a004a8c4baba5a315070f6b3f6bc18365898af5ac338a842
Number: 57, Hex Value: 0000000000000000000000000000000000000000000000000000000000000039, SHA Hash: f8a19c7c24a1bd5e7a186caa8189d860093450a39aeeb30e28551b359f393978
Number: 58, Hex Value: 000000000000000000000000000000000000000000000000000000000000003a, SHA Hash: feccc5ff2ec0756f8499515b8a96dcab927b1fcbe4bf17ff7c30aea53dfef428
Number: 59, Hex Value: 000000000000000000000000000000000000000000000000000000000000003b, SHA Hash: 58a244088e6db8d1ea3eabb10a58585151170f7dcc3e430cdbf38bd6ea7a2a68
Number: 60, Hex Value: 000000000000000000000000000000000000000000000000000000000000003c, SHA Hash: d96bdf4a036f6ed21ddf42c3510a0d68dc4491127f6603630340382ebc026e1a

Execution time: 0.001308 seconds

The website you have visited does something similar, except instead of calculating the SHA256 hash, it calculates the address.