internal

const (
	// BytesPerLine denominates the amount of bytes to be encoded per line of the serialized output
	BytesPerLine = 24
	// PdfTextFont gives the typeface as it is named in the PDF
	PdfTextFont = "Text"
	// PdfMonoFont gives the typeface for monospace passages as it is named in the PDF
	PdfMonoFont = "Mono"
	// PdfDataLineFontSize sets the font size of data lines in the PDF [pt]
	PdfDataLineFontSize = 11
)

const (
	// HeaderFieldVersion holds the name of the header field Version. Constant to avoid parsing issues.
	HeaderFieldVersion = "PaperCrypt Version"
	// HeaderFieldSerial holds the name of the header field for the serial number. Constant to avoid parsing issues.
	HeaderFieldSerial = "Content Serial"
	// HeaderFieldPurpose holds the name of the header field Purpose. Constant to avoid parsing issues.
	HeaderFieldPurpose = "Purpose"
	// HeaderFieldComment holds the name of the header field Comment. Constant to avoid parsing issues.
	HeaderFieldComment = "Comment"
	// HeaderFieldDate holds the name of the header field Date. Constant to avoid parsing issues.
	HeaderFieldDate = "Date"
	// HeaderFieldDataFormat holds the name of the header field Data Format. Constant to avoid parsing issues.
	HeaderFieldDataFormat = "Data Format"
	// HeaderFieldContentLength holds the name of the header field Content Length. Constant to avoid parsing issues.
	HeaderFieldContentLength = "Content Length"
	// HeaderFieldCRC24 holds the name of the header field for the CRC-24 checksum. Constant to avoid parsing issues.
	HeaderFieldCRC24 = "Content CRC-24"
	// HeaderFieldCRC32 holds the name of the header field for the CRC-32 checksum. Constant to avoid parsing issues.
	HeaderFieldCRC32 = "Content CRC-32"
	// HeaderFieldSHA256 holds the name of the header field for the SHA-256 checksum. Constant to avoid parsing issues.
	HeaderFieldSHA256 = "Content SHA-256"
	// HeaderFieldHeaderCRC32 holds the name of the header field for the CRC-32 checksum of the header. Constant to avoid parsing issues.
	HeaderFieldHeaderCRC32 = "Header CRC-32"
	// PDFHeaderSheetID holds the text label displayed in the PDF header for the sheet ID.
	PDFHeaderSheetID = "Sheet ID"
	// PDFHeading holds the title of the PDF document, as shown on the first page.
	PDFHeading = "PaperCrypt Recovery Sheet"
	// PDFSectionDescriptionHeading holds the title of the section describing the document.
	PDFSectionDescriptionHeading = "What is this?"
	// PDFSectionDescriptionContent holds the content of the section describing the document.
	PDFSectionDescriptionContent = "" /* 235-byte string literal not displayed */
	// PDFSectionRepresentationHeading holds the title of the section describing the data representation.
	PDFSectionRepresentationHeading = "Binary Data Representation"
	// PDFSectionRepresentationContent holds the content of the section describing the data representation.
	PDFSectionRepresentationContent = "" /* 556-byte string literal not displayed */
	// PDFSectionRecoveryHeading holds the title of the section describing how to recover the data.
	PDFSectionRecoveryHeading = "Recovering the data"
	// PDFSectionRecoveryContent holds the content of the section describing how to recover the data.
	PDFSectionRecoveryContent = "" /* 251-byte string literal not displayed */
	// PDFSectionRecoveryContentNo2D holds the content of the section describing how to recover the data, if no 2D code is present.
	PDFSectionRecoveryContentNo2D = "" /* 230-byte string literal not displayed */
)

const (
	// CRC24Polynomial defines the polynomial used by the CRC-24 algorithm. See https://en.wikipedia.org/wiki/Cyclic_redundancy_check#:~:text=OpenPGP%2C%20RTCM104v3-,0x864cfb,-0xDF3261. This is the polynomial used in OpenPGP and RTCM104v3, represented as a uint32.
	CRC24Polynomial = uint32(0x864CFB) // CRC-24 polynomial
	// CRC24Initial is the initial value used for CRC-24 calculations. This is the initial value used in OpenPGP and RTCM104v3, represented as a uint32.
	CRC24Initial = uint32(0xB704CE) // Initial value
	// CRC24TableSize is the size of the CRC-24 table used for faster computation.
	CRC24TableSize = uint32(256) // Table size for faster computation
)

const (
	// TimeStampFormatLong shows the full date and time precisely for humans. It is used for the container file, as well as the timestamp command-line parameter.
	TimeStampFormatLong = "Mon, 02 Jan 2006 15:04:05.000000000 -0700"
	// TimeStampFormatLongTZ is used for v1 backwards compatibility.
	TimeStampFormatLongTZ = "Mon, 02 Jan 2006 15:04:05.000000000 MST"
	// TimeStampFormatShort is used in parsing the timestamp command-line parameter [cmd/generateCmd].
	TimeStampFormatShort = "2006-01-02 15:04:05"
	// TimeStampFormatDate is used as an alternative format for the command-line parameter.
	TimeStampFormatDate = "2006-01-02"
	// TimeStampFormatPDFHeader is used exclusively for the timestamps in displayed PDF headers. Both for the normal papercrypt sheet and the phrase sheet.
	TimeStampFormatPDFHeader = "2006-01-02 15:04 -0700"
)

const (
	BytesPerLineV1 = 22 // As is done in paperkey (https://www.jabberwocky.com/software/paperkey/)
)