552d747365267fb56f949368f9c6b295 ijet_a2025v20n4p81.pdf 7e47090045f4382a83249346c2e5ab19022e0810 ijet_a2025v20n4p81.pdf 92b0403c5ed87dbcc048095784eea165a772741505c87e11d5da166e0539962e ijet_a2025v20n4p81.pdf Title: International Journal of Emerging Technologies in Learning (iJET) – eISSN: 1863-0383 – Vol  20 No  04 (2025) Creator: PDFsam Basic v5.4.1 Producer: SAMBox 3.0.28 CreationDate: Thu Nov 13 11:56:06 2025 CET ModDate: Thu Nov 13 12:37:18 2025 CET Custom Metadata: yes Metadata Stream: yes Tagged: no UserProperties: no Suspects: no Form: none JavaScript: no Pages: 17 Encrypted: no Page size: 595.276 x 841.89 pts (A4) Page rot: 0 File size: 1155352 bytes Optimized: no PDF version: 1.6 name type encoding emb sub uni object ID ------------------------------------ ----------------- ---------------- --- --- --- --------- GFMXZW+NotoSans-CondensedLightItalic CID TrueType Identity-H yes yes yes 363 0 YTLBRM+NotoSerif-Light CID TrueType Identity-H yes yes yes 364 0 CZOZVE+NotoSans-CondensedBold CID TrueType Identity-H yes yes yes 365 0 RGZLXA+Wingdings-Regular CID TrueType Identity-H yes yes yes 366 0 SMATCI+MyriadPro-LightCond Type 1C WinAnsi yes yes yes 367 0 RIQNOK+MyriadPro-BoldSemiCn Type 1C WinAnsi yes yes yes 368 0 QJBHAM+MyriadPro-Regular Type 1C WinAnsi yes yes yes 369 0 PFMBMO+MyriadPro-Bold Type 1C WinAnsi yes yes yes 370 0 NCNPKS+MyriadPro-Light Type 1C WinAnsi yes yes yes 371 0 JWPRGA+NotoSans-CondensedLight TrueType WinAnsi yes yes yes 372 0 JYIKPV+NotoSans-SemiCondensedBold TrueType WinAnsi yes yes yes 373 0 AGZPKS+NotoSans-CondensedBold TrueType WinAnsi yes yes yes 374 0 VBMLSC+NotoSerif-Light TrueType WinAnsi yes yes yes 375 0 TYNZQG+NotoSans-CondensedMedium TrueType WinAnsi yes yes yes 376 0 RVONOK+NotoSans-Condensed TrueType WinAnsi yes yes yes 377 0 NKLPKS+NotoSerif-CondensedSemiBold TrueType WinAnsi yes yes yes 388 0 LXCWRM+NotoSerif-CondensedLight CID TrueType Identity-H yes yes yes 395 0 ATXPKS+NotoSerif-CondensedLight TrueType WinAnsi yes yes yes 396 0 FOAMLY+Symbol-Bold Type 1C Custom yes yes yes 402 0 JENRGA+Symbol Type 1C Custom yes yes yes 403 0 WPSKPV+NotoSerif-CondensedSemiBoldItalic TrueType WinAnsi yes yes yes 404 0 FYKTCI+NotoSerif-SemiBold TrueType WinAnsi yes yes yes 405 0 PDAZVE+NotoSerif-CondensedSemiBold CID TrueType Identity-H yes yes yes 414 0 CHMUVE+NotoSerif-SemiBold CID TrueType Identity-H yes yes yes 419 0 GESSZB+NotoSerif-Italic TrueType WinAnsi yes yes yes 420 0 ZPNJWU+NotoSerif-LightItalic TrueType WinAnsi yes yes yes 421 0 LHMDIW+NotoSerif-Bold TrueType WinAnsi yes yes yes 422 0 EBTGXF+NotoSerif-LightItalic Type 1C Custom yes yes no 440 0 ROXGXA+SymbolMT Type 1C Custom yes yes no 441 0 ROXGXA+NotoSerif-Light Type 1C Custom yes yes no 442 0 ROXGXA+NotoSerif-Light Type 1C Custom yes yes no 443 0 EBTGXF+NotoSerif-LightItalic Type 1C Custom yes yes no 444 0 ROXGXA+SymbolMT Type 1C Custom yes yes no 445 0 XCZQDO+NotoSerif-LightItalic CID TrueType Identity-H yes yes yes 475 0 Jhove (Rel. 1.28.0, 2023-05-18) Date: 2026-04-24 04:54:23 CEST RepresentationInformation: ijet_a2025v20n4p81.pdf ReportingModule: PDF-hul, Rel. 1.12.4 (2023-03-16) LastModified: 2026-04-23 19:38:40 CEST Size: 1155352 Format: PDF Version: 1.6 Status: Well-Formed and valid SignatureMatches: PDF-hul MIMEtype: application/pdf PDFMetadata: Objects: 0 FreeObjects: 69 IncrementalUpdates: 0 DocumentCatalog: ViewerPreferences: HideToolbar: false HideMenubar: false HideWindowUI: false FitWindow: false CenterWindow: false DisplayDocTitle: true NonFullScreenPageMode: UseNone Direction: L2R ViewArea: CropBox ViewClip: CropBox PrintArea: CropBox PageClip: CropBox PageLayout: SinglePage PageMode: UseNone Filters: FilterPipeline: FlateDecode FilterPipeline: DCTDecode Images: Image: NisoImageMetadata: FormatName: image/jpg CompressionScheme: JPEG ImageWidth: 1770 ImageHeight: 924 ColorSpace: RGB BitsPerSample: 8 BitsPerSampleUnit: integer Intent: RelativeColorimetric Name: X Image: NisoImageMetadata: FormatName: image/jpg CompressionScheme: JPEG ImageWidth: 1770 ImageHeight: 1216 ColorSpace: RGB BitsPerSample: 8 BitsPerSampleUnit: integer Intent: RelativeColorimetric Name: X Image: NisoImageMetadata: FormatName: image/jpg CompressionScheme: JPEG ImageWidth: 1326 ImageHeight: 975 ColorSpace: RGB BitsPerSample: 8 BitsPerSampleUnit: integer Intent: RelativeColorimetric Name: X Image: NisoImageMetadata: FormatName: image/jpg CompressionScheme: JPEG ImageWidth: 1326 ImageHeight: 884 ColorSpace: RGB BitsPerSample: 8 BitsPerSampleUnit: integer Intent: RelativeColorimetric Name: X Fonts: Type0: Font: BaseFont: CHMUVE+NotoSerif-SemiBold Encoding: Identity-H ToUnicode: true Font: BaseFont: GFMXZW+NotoSans-CondensedLightItalic Encoding: Identity-H ToUnicode: true Font: BaseFont: LXCWRM+NotoSerif-CondensedLight Encoding: Identity-H ToUnicode: true Font: BaseFont: XCZQDO+NotoSerif-LightItalic Encoding: Identity-H ToUnicode: true Font: BaseFont: YTLBRM+NotoSerif-Light Encoding: Identity-H ToUnicode: true Font: BaseFont: CZOZVE+NotoSans-CondensedBold Encoding: Identity-H ToUnicode: true Font: BaseFont: RGZLXA+Wingdings-Regular Encoding: Identity-H ToUnicode: true Font: BaseFont: PDAZVE+NotoSerif-CondensedSemiBold Encoding: Identity-H ToUnicode: true Type1: Font: BaseFont: SMATCI+MyriadPro-LightCond FontSubset: true FirstChar: 32 LastChar: 124 FontDescriptor: FontName: SMATCI+MyriadPro-LightCond Flags: Nonsymbolic FontBBox: -47, -250, 970, 863 FontFile3: true Encoding: WinAnsiEncoding ToUnicode: true Font: BaseFont: RIQNOK+MyriadPro-BoldSemiCn FontSubset: true FirstChar: 48 LastChar: 57 FontDescriptor: FontName: RIQNOK+MyriadPro-BoldSemiCn Flags: Nonsymbolic FontBBox: -133, -250, 1161, 894 FontFile3: true Encoding: WinAnsiEncoding ToUnicode: true Font: BaseFont: QJBHAM+MyriadPro-Regular FontSubset: true FirstChar: 32 LastChar: 124 FontDescriptor: FontName: QJBHAM+MyriadPro-Regular Flags: Nonsymbolic FontBBox: -157, -250, 1126, 952 FontFile3: true Encoding: WinAnsiEncoding ToUnicode: true Font: BaseFont: PFMBMO+MyriadPro-Bold FontSubset: true FirstChar: 32 LastChar: 117 FontDescriptor: FontName: PFMBMO+MyriadPro-Bold Flags: Nonsymbolic FontBBox: -163, -250, 1256, 989 FontFile3: true Encoding: WinAnsiEncoding ToUnicode: true Font: BaseFont: FOAMLY+Symbol-Bold FontSubset: true FirstChar: 31 LastChar: 31 FontDescriptor: FontName: FOAMLY+Symbol-Bold Flags: Symbolic FontBBox: -196, -317, 1090, 1030 FontFile3: true EncodingDictionary: BaseEncoding: WinAnsiEncoding Differences: true ToUnicode: true Font: BaseFont: NCNPKS+MyriadPro-Light FontSubset: true FirstChar: 32 LastChar: 117 FontDescriptor: FontName: NCNPKS+MyriadPro-Light Flags: Nonsymbolic FontBBox: -49, -250, 1046, 883 FontFile3: true Encoding: WinAnsiEncoding ToUnicode: true Font: BaseFont: JENRGA+Symbol FontSubset: true FirstChar: 28 LastChar: 31 FontDescriptor: FontName: JENRGA+Symbol Flags: Symbolic FontBBox: -180, -293, 1090, 1010 FontFile3: true EncodingDictionary: BaseEncoding: WinAnsiEncoding Differences: true ToUnicode: true Font: BaseFont: EBTGXF+NotoSerif-LightItalic FontSubset: true FirstChar: 29 LastChar: 31 FontDescriptor: FontName: EBTGXF+NotoSerif-LightItalic Flags: Serif, Symbolic FontBBox: -58, -240, 978, 760 FontFile3: true EncodingDictionary: BaseEncoding: WinAnsiEncoding Differences: true Font: BaseFont: ROXGXA+SymbolMT FontSubset: true FirstChar: 29 LastChar: 31 FontDescriptor: FontName: ROXGXA+SymbolMT Flags: Symbolic FontBBox: 0, -220, 1113, 1005 FontFile3: true EncodingDictionary: BaseEncoding: WinAnsiEncoding Differences: true Font: BaseFont: ROXGXA+NotoSerif-Light FontSubset: true FirstChar: 28 LastChar: 31 FontDescriptor: FontName: ROXGXA+NotoSerif-Light Flags: Serif, Symbolic FontBBox: 42, -122, 505, 753 FontFile3: true EncodingDictionary: BaseEncoding: WinAnsiEncoding Differences: true Font: BaseFont: ROXGXA+NotoSerif-Light FontSubset: true FirstChar: 29 LastChar: 31 FontDescriptor: FontName: ROXGXA+NotoSerif-Light Flags: Serif, Symbolic FontBBox: 42, -122, 505, 753 FontFile3: true EncodingDictionary: BaseEncoding: WinAnsiEncoding Differences: true Font: BaseFont: EBTGXF+NotoSerif-LightItalic FontSubset: true FirstChar: 16 LastChar: 31 FontDescriptor: FontName: EBTGXF+NotoSerif-LightItalic Flags: Serif, Symbolic FontBBox: -58, -240, 978, 760 FontFile3: true EncodingDictionary: BaseEncoding: WinAnsiEncoding Differences: true Font: BaseFont: ROXGXA+SymbolMT FontSubset: true FirstChar: 30 LastChar: 31 FontDescriptor: FontName: ROXGXA+SymbolMT Flags: Symbolic FontBBox: 0, -220, 1113, 1005 FontFile3: true EncodingDictionary: BaseEncoding: WinAnsiEncoding Differences: true TrueType: Font: BaseFont: NKLPKS+NotoSerif-CondensedSemiBold FontSubset: true FirstChar: 32 LastChar: 150 FontDescriptor: FontName: NKLPKS+NotoSerif-CondensedSemiBold Flags: Serif, Nonsymbolic FontBBox: -612, -389, 2417, 1054 FontFile2: true Encoding: WinAnsiEncoding ToUnicode: true Font: BaseFont: GESSZB+NotoSerif-Italic FontSubset: true FirstChar: 32 LastChar: 121 FontDescriptor: FontName: GESSZB+NotoSerif-Italic Flags: Serif, Nonsymbolic, Italic FontBBox: -465, -257, 1356, 1048 FontFile2: true Encoding: WinAnsiEncoding ToUnicode: true Font: BaseFont: ZPNJWU+NotoSerif-LightItalic FontSubset: true FirstChar: 32 LastChar: 148 FontDescriptor: FontName: ZPNJWU+NotoSerif-LightItalic Flags: Serif, Nonsymbolic FontBBox: -750, -389, 2797, 1037 FontFile2: true Encoding: WinAnsiEncoding ToUnicode: true Font: BaseFont: LHMDIW+NotoSerif-Bold FontSubset: true FirstChar: 32 LastChar: 122 FontDescriptor: FontName: LHMDIW+NotoSerif-Bold Flags: Serif, Nonsymbolic FontBBox: -559, -279, 1501, 1065 FontFile2: true Encoding: WinAnsiEncoding ToUnicode: true Font: BaseFont: ATXPKS+NotoSerif-CondensedLight FontSubset: true FirstChar: 32 LastChar: 150 FontDescriptor: FontName: ATXPKS+NotoSerif-CondensedLight Flags: Serif, Nonsymbolic FontBBox: -579, -389, 2358, 1043 FontFile2: true Encoding: WinAnsiEncoding ToUnicode: true Font: BaseFont: JWPRGA+NotoSans-CondensedLight FontSubset: true FirstChar: 32 LastChar: 242 FontDescriptor: FontName: JWPRGA+NotoSans-CondensedLight Flags: Nonsymbolic FontBBox: -551, -389, 2797, 1064 FontFile2: true Encoding: WinAnsiEncoding ToUnicode: true Font: BaseFont: WPSKPV+NotoSerif-CondensedSemiBoldItalic FontSubset: true FirstChar: 110 LastChar: 110 FontDescriptor: FontName: WPSKPV+NotoSerif-CondensedSemiBoldItalic Flags: Serif, Nonsymbolic FontBBox: -617, -389, 2562, 1052 FontFile2: true Encoding: WinAnsiEncoding ToUnicode: true Font: BaseFont: JYIKPV+NotoSans-SemiCondensedBold FontSubset: true FirstChar: 32 LastChar: 121 FontDescriptor: FontName: JYIKPV+NotoSans-SemiCondensedBold Flags: Nonsymbolic FontBBox: -603, -389, 2803, 1077 FontFile2: true Encoding: WinAnsiEncoding ToUnicode: true Font: BaseFont: FYKTCI+NotoSerif-SemiBold FontSubset: true FirstChar: 32 LastChar: 150 FontDescriptor: FontName: FYKTCI+NotoSerif-SemiBold Flags: Serif, Nonsymbolic FontBBox: -706, -389, 2797, 1055 FontFile2: true Encoding: WinAnsiEncoding ToUnicode: true Font: BaseFont: AGZPKS+NotoSans-CondensedBold FontSubset: true FirstChar: 65 LastChar: 89 FontDescriptor: FontName: AGZPKS+NotoSans-CondensedBold Flags: Nonsymbolic FontBBox: -583, -389, 2806, 1084 FontFile2: true Encoding: WinAnsiEncoding ToUnicode: true Font: BaseFont: VBMLSC+NotoSerif-Light FontSubset: true FirstChar: 32 LastChar: 242 FontDescriptor: FontName: VBMLSC+NotoSerif-Light Flags: Serif, Nonsymbolic FontBBox: -687, -389, 2797, 1037 FontFile2: true Encoding: WinAnsiEncoding ToUnicode: true Font: BaseFont: TYNZQG+NotoSans-CondensedMedium FontSubset: true FirstChar: 32 LastChar: 122 FontDescriptor: FontName: TYNZQG+NotoSans-CondensedMedium Flags: Nonsymbolic FontBBox: -569, -389, 2803, 1062 FontFile2: true Encoding: WinAnsiEncoding ToUnicode: true Font: BaseFont: RVONOK+NotoSans-Condensed FontSubset: true FirstChar: 46 LastChar: 117 FontDescriptor: FontName: RVONOK+NotoSans-Condensed Flags: Nonsymbolic FontBBox: -564, -389, 2802, 1061 FontFile2: true Encoding: WinAnsiEncoding ToUnicode: true CIDFontType2: Font: BaseFont: GFMXZW+NotoSans-CondensedLightItalic CIDSystemInfo: Registry: Adobe Registry: Identity Supplement: 0 FontDescriptor: FontName: GFMXZW+NotoSans-CondensedLightItalic Flags: Symbolic FontBBox: -605, -389, 2557, 1064 FontFile2: true Font: BaseFont: YDADIW+NotoSerif-Light CIDSystemInfo: Registry: Adobe Registry: Identity Supplement: 0 FontDescriptor: FontName: YDADIW+NotoSerif-Light Flags: Serif, Symbolic FontBBox: -687, -389, 2797, 1037 FontFile2: true Font: BaseFont: ANXITN+NotoSerif-LightItalic CIDSystemInfo: Registry: Adobe Registry: Identity Supplement: 0 FontDescriptor: FontName: ANXITN+NotoSerif-LightItalic Flags: Serif, Symbolic FontBBox: -750, -389, 2797, 1037 FontFile2: true Font: BaseFont: DNNHAM+NotoSans-CondensedBold CIDSystemInfo: Registry: Adobe Registry: Identity Supplement: 0 FontDescriptor: FontName: DNNHAM+NotoSans-CondensedBold Flags: Symbolic FontBBox: -583, -389, 2806, 1084 FontFile2: true Font: BaseFont: EZANOK+NotoSerif-CondensedLight CIDSystemInfo: Registry: Adobe Registry: Identity Supplement: 0 FontDescriptor: FontName: EZANOK+NotoSerif-CondensedLight Flags: Serif, Symbolic FontBBox: -579, -389, 2358, 1043 FontFile2: true Font: BaseFont: SUYTCI+Wingdings-Regular CIDSystemInfo: Registry: Adobe Registry: Identity Supplement: 0 FontDescriptor: FontName: SUYTCI+Wingdings-Regular Flags: Symbolic FontBBox: 0, -211, 1359, 899 FontFile2: true Font: BaseFont: PSPBMO+NotoSerif-CondensedSemiBold CIDSystemInfo: Registry: Adobe Registry: Identity Supplement: 0 FontDescriptor: FontName: PSPBMO+NotoSerif-CondensedSemiBold Flags: Serif, Symbolic FontBBox: -612, -389, 2417, 1054 FontFile2: true Font: BaseFont: IFYLSC+NotoSerif-SemiBold CIDSystemInfo: Registry: Adobe Registry: Identity Supplement: 0 FontDescriptor: FontName: IFYLSC+NotoSerif-SemiBold Flags: Serif, Symbolic FontBBox: -706, -389, 2797, 1055 FontFile2: true XMP: 2025-11-13T11:56:06+01:00 PDFsam Basic v5.4.1 2025-11-13T12:37:18+01:00 2025-11-13T12:37:18+01:00 SAMBox 3.0.28 application/pdf International Journal of Emerging Technologies in Learning (iJET) – eISSN: 1863-0383 – Vol  20 No  04 (2025) uuid:3d30ac86-aa47-c24a-bf33-f68942a3946e uuid:3f5bcc39-e0d4-af45-9d64-12b3b47f0a1e Copyright © is retained by the authors of this paper. Licensed to the public under Creative Commons Attribution 4.0 International. Pages: Page: Sequence: 1 Annotations: Annotation: Subtype: Link Rect: 347, 56, 510, 46 Annotation: Subtype: Link Rect: 40, 794, 554, 761 Annotation: Subtype: Link Rect: 339, 128, 477, 115 Annotation: Subtype: Link Rect: 417, 826, 554, 806 Annotation: Subtype: Link Rect: 419, 827, 552, 808 Annotation: Subtype: Link Rect: 99, 578, 111, 566 Annotation: Subtype: Link Rect: 87, 565, 99, 553 Annotation: Subtype: Link Rect: 66, 552, 78, 540 Annotation: Subtype: Link Rect: 131, 552, 143, 540 Annotation: Subtype: Link Rect: 42, 435, 96, 422 Annotation: Subtype: Link Rect: 42, 422, 101, 409 Annotation: Subtype: Link Rect: 399, 720, 552, 709 Page: Sequence: 2 Annotations: Annotation: Subtype: Link Rect: 85, 56, 248, 46 Page: Sequence: 3 Annotations: Annotation: Subtype: Link Rect: 347, 56, 510, 46 Page: Sequence: 4 Annotations: Annotation: Subtype: Link Rect: 85, 56, 248, 46 Page: Sequence: 5 Annotations: Annotation: Subtype: Link Rect: 347, 56, 510, 46 Page: Sequence: 6 Annotations: Annotation: Subtype: Link Rect: 85, 56, 248, 46 Page: Sequence: 7 Annotations: Annotation: Subtype: Link Rect: 347, 56, 510, 46 Annotation: Subtype: Link Rect: 374, 592, 445, 578 Page: Sequence: 8 Annotations: Annotation: Subtype: Link Rect: 85, 56, 248, 46 Page: Sequence: 9 Annotations: Annotation: Subtype: Link Rect: 347, 56, 510, 46 Page: Sequence: 10 Annotations: Annotation: Subtype: Link Rect: 85, 56, 248, 46 Page: Sequence: 11 Annotations: Annotation: Subtype: Link Rect: 347, 56, 510, 46 Page: Sequence: 12 Annotations: Annotation: Subtype: Link Rect: 85, 56, 248, 46 Page: Sequence: 13 Annotations: Annotation: Subtype: Link Rect: 347, 56, 510, 46 Page: Sequence: 14 Annotations: Annotation: Subtype: Link Rect: 85, 56, 248, 46 Page: Sequence: 15 Annotations: Annotation: Subtype: Link Rect: 347, 56, 510, 46 Annotation: Subtype: Link Rect: 493, 188, 552, 175 Annotation: Subtype: Link Rect: 193, 175, 308, 162 Annotation: Subtype: Link Rect: 272, 136, 431, 123 Annotation: Subtype: Link Rect: 363, 110, 500, 97 Page: Sequence: 16 Annotations: Annotation: Subtype: Link Rect: 85, 56, 248, 46 Annotation: Subtype: Link Rect: 493, 735, 552, 722 Annotation: Subtype: Link Rect: 193, 722, 260, 709 Annotation: Subtype: Link Rect: 509, 683, 552, 670 Annotation: Subtype: Link Rect: 193, 670, 284, 657 Annotation: Subtype: Link Rect: 509, 644, 552, 631 Annotation: Subtype: Link Rect: 193, 631, 348, 618 Annotation: Subtype: Link Rect: 193, 592, 367, 579 Annotation: Subtype: Link Rect: 389, 553, 552, 540 Annotation: Subtype: Link Rect: 217, 514, 354, 501 Annotation: Subtype: Link Rect: 458, 488, 552, 475 Annotation: Subtype: Link Rect: 193, 475, 276, 462 Annotation: Subtype: Link Rect: 298, 436, 474, 423 Annotation: Subtype: Link Rect: 493, 410, 552, 397 Annotation: Subtype: Link Rect: 193, 397, 304, 384 Annotation: Subtype: Link Rect: 493, 358, 552, 345 Annotation: Subtype: Link Rect: 193, 345, 325, 332 Annotation: Subtype: Link Rect: 322, 306, 477, 293 Annotation: Subtype: Link Rect: 281, 254, 453, 241 Annotation: Subtype: Link Rect: 351, 215, 477, 202 Annotation: Subtype: Link Rect: 384, 176, 535, 163 Annotation: Subtype: Link Rect: 474, 163, 552, 150 Annotation: Subtype: Link Rect: 193, 150, 252, 137 Annotation: Subtype: Link Rect: 486, 137, 552, 124 Annotation: Subtype: Link Rect: 193, 124, 262, 111 Annotation: Subtype: Link Rect: 266, 98, 476, 85 Page: Sequence: 17 Annotations: Annotation: Subtype: Link Rect: 347, 56, 510, 46 Annotation: Subtype: Link Rect: 467, 693, 552, 678 Annotation: Subtype: Link Rect: 170, 680, 311, 665 Annotation: Subtype: Link Rect: 489, 498, 552, 483 Annotation: Subtype: Link Rect: 170, 485, 256, 470 Checksum: 0f0f2aa2 Type: CRC32 Checksum: 552d747365267fb56f949368f9c6b295 Type: MD5 Checksum: 7e47090045f4382a83249346c2e5ab19022e0810 Type: SHA-1 Checksum: 92b0403c5ed87dbcc048095784eea165a772741505c87e11d5da166e0539962e Type: SHA-256