Bitcoin/address validation: Difference between revisions
Content added Content deleted
m (rev4 now in sha256.e) |
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| Line 1,399: | Line 1,399: | ||
end if |
end if |
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return out |
return out |
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end function |
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function rev4(string s) |
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string res = "" |
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for i=1 to length(s)-3 by 4 do |
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for j=i+3 to i by -1 do |
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res &= s[j] |
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end for |
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end for |
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return res |
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end function |
end function |
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| Line 1,415: | Line 1,405: | ||
procedure valid(string s) |
procedure valid(string s) |
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object dec |
object dec |
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sequence d1, d2 |
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coin_err = "OK" |
coin_err = "OK" |
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dec = unbase58(s) |
dec = unbase58(s) |
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if string(dec) then |
if string(dec) then |
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if dec[22..$]!=sha256(sha256(dec[1..21]))[1..4] then |
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d2 = rev4(sha256(rev4(d1))) |
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if dec[22..$]!=d2[1..4] then |
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coin_err = "bad digest" |
coin_err = "bad digest" |
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end if |
end if |
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| Line 1,441: | Line 1,428: | ||
"1badbadbadbadbadbadbadbadbadbadbad", -- not version 0 |
"1badbadbadbadbadbadbadbadbadbadbad", -- not version 0 |
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"BZbvjr", -- first character is not 1 or 3 (checksum is fine, address too short) |
"BZbvjr", -- first character is not 1 or 3 (checksum is fine, address too short) |
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"16UwLL9Risc3QfPqBUvKofHmBQ7wMtjvM", -- OK (from public_point_to_address) |
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$} |
$} |
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