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luv2drnkbr (OP)
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November 26, 2014, 08:43:12 PM
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I've noticed that some scriptsigs have a 0x00 prefixing the 32 byte R and S values in the signatures, and some signatures do not have that.  I was hoping somebody knows the reason behind that and can explain to me if and when the prefix is necessary, and why.
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Transactions must be included in a block to be properly completed. When you send a transaction, it is broadcast to miners. Miners can then optionally include it in their next blocks. Miners will be more inclined to include your transaction if it has a higher transaction fee.
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Pieter Wuille
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November 26, 2014, 11:42:39 PM
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It's a DER requirement to prefix a 0x00 byte to an encoded integer if the integer otherwise starts with a byte >= 0x80. If not, it would be interpreted as a negative number.
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November 27, 2014, 01:18:57 AM
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Thanks for that clear explanation!
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