logo
down
shadow

Hardcoded byte array ends up as data when it exceeds 0xF in length


Hardcoded byte array ends up as data when it exceeds 0xF in length

Content Index :

Hardcoded byte array ends up as data when it exceeds 0xF in length
Tag : cpp-11 , By : snk
Date : January 12 2021, 08:33 AM

I wish this helpful for you if you can afford the performance penalty, something like this seems to work on clang; in my tests, it compiles to a set of immediate mov's ( gcc works too after fixing the attribute ):
template <unsigned char C>
struct noopt { [[clang::optnone]] unsigned char operator()() const { return C; } };

#define NODATA(v) (noopt<(v)>{}())

int main(){
    unsigned char bytes[] = { NODATA(0x1), NODATA(0x2), NODATA(0x3), NODATA(0x4), };

    // ...
}

Comments
No Comments Right Now !

Boards Message :
You Must Login Or Sign Up to Add Your Comments .

Share : facebook icon twitter icon

I encrypt data with 32 byte length using AES algorithm the result(cipher text) is 64 byte length,Is this valid?


Tag : java , By : AdrianB
Date : March 29 2020, 07:55 AM
should help you out You are confusing hexadecimal characters and bytes. Two hexadecimal characters can be used to represent a single byte. So your input is likely 16 bytes and your output then becomes 32 bytes. AES is a 128 bits = 16-byte block cipher.
PKCS#7 padding is defined to pad 16 byte block ciphers. To make sure that the last byte of the plain text is not mistaken for padding, PKCS#7 padding always pads. This means that in the unfortunate circumstance that the plain text is dividable by 16, it will add an entire block of padding. The padding consists of a string of bytes indicating the length of the string in each byte, so for your case the padding consists of the following bytes, represented by hexadecimals: 10101010101010101010101010101010.

Nhibernate error: The length of the byte[] value exceeds the length configured in the mapping/parameter


Tag : sql-server-2008 , By : ack
Date : March 29 2020, 07:55 AM
it should still fix some issue I have updated this code: public class TestEntity : BaseEntity { public virtual Guid ImageId { get; set; }
    public virtual System.Byte[] Image { get; set; }
}
mapper.Class<TestEntity>(map => map.Property(o => o.Image, pm => pm.Type(NHibernateUtil.BinaryBlob)));

getting negative byte array length or large amount of byte array length at client side in java


Tag : java , By : Ohad Barzilay
Date : March 29 2020, 07:55 AM
To fix this issue I am transmitting image from server to client. Server capture the screen and convert it to byte array and client receive byte array and convert back it to image. but transmission happens only for few frame and then error occurred. , You are using
DataInputStream#read(byte[])
DataInputStream#readFully(byte[])

NHibernate Image Storage - The length of the byte[] value exceeds the length configured


Tag : nhibernate , By : mylonov
Date : March 29 2020, 07:55 AM

getBytes exceeds data length, but the range is obviously less than the length


Tag : objective-c , By : Tetting
Date : March 29 2020, 07:55 AM
Related Posts Related QUESTIONS :
shadow
Privacy Policy - Terms - Contact Us © scrbit.com